Halo 3

Halo 3 Achievements

Mongoose Mowdown

Splatter an enemy with the mongoose in a ranked free for all playlist (Online).  

This one is tricky. You will have to hit someone with low shields and at high speend for it to kill them, plus you have no weapons while on the Mongoose to defend yourself. Your best bet is to find two people fighting and barge in, hoping they don't notice you and you can get one of them square on.

Maps: High Ground, Isolation

This must be done in the "Lone Wolves" game type.

Rate this achievementAverage Rating (Based on 9 votes)
User Comments
Comment #1 by Digitalgator
Saturday, August 21, 2010 @ 03:57:47 PM

You have to get the person down to no,shiels first then drive at them

Comment #2 by mykolabferrari
Sunday, January 23, 2011 @ 08:37:17 PM

this is so hard

Comment #3 by DaJuiceMane420
Saturday, April 02, 2011 @ 01:17:25 PM

Add me need help GT--DaJuiceMane420

Comment #4 by Dirty Deee
Monday, April 04, 2011 @ 03:10:29 AM

what you do is that you take a mongolism on map and just try to hit someone. This may take time, but thats how did it. i would recommend that you do this on maps you hate.

Comment #5 by xuxa29
Sunday, May 01, 2011 @ 06:51:01 PM

this is incredibly hard

Comment #6 by Symbiotic
Monday, May 09, 2011 @ 03:22:03 AM

Does anyone know if "free for all" means Slayer? I splattered someone with a mongoose in a team slayer game and didn't get this achievement for it.
Just asking so I know the right mode to play in. Thanks in advance.

Comment #7 by starcaleb
Wednesday, May 11, 2011 @ 10:33:04 AM

It has to be in lone wolves. if you have a lone wolves rank of around 28 then we can boost. my GT is starcaleb

Comment #8 by Jdubbwilliams7
Monday, June 06, 2011 @ 01:53:42 AM

I'm still trying to get this and all the other FFA achievements so anybody who wants to get them message me.. my GT is my username

Comment #9 by ost och skink
Tuesday, June 28, 2011 @ 02:57:14 AM

Need this and Two for One and Overkill message if you want to get them.

GT: Ost och skink

Comment #10 by kingfatass010
Tuesday, June 28, 2011 @ 08:28:36 AM

i cant even run over a weak grunt with a freakin so how am i supposed to do this one.REDICULOUS

Comment #11 by Relytia
Saturday, July 02, 2011 @ 12:09:04 PM

It's so hard to do this, even if someone is kind enough to not attack you in a match so you can get this. The other players are jerks and will probably kill you or the person helping before you can splatter them. I had to hit someone 2 or 3 times with the mongoose before he finally splattered, and I had to back WAY up each time to pick up enough speed. This achievement blows. Never again.

Comment #12 by feller2007
Friday, July 08, 2011 @ 12:39:27 AM

Hey i need help i got a new account my old one was hacked and i want to rebeat halo message me at smorgasbords if u want to get this also or any if the other lone wolf achievements

Comment #13 by hunter226037
Wednesday, July 20, 2011 @ 08:13:16 AM

This achievement is so hard i all most had it then the game ended

Comment #14 by The Produca
Saturday, August 06, 2011 @ 01:57:47 PM

Add me to boost. Gamer tag is Th4 Produca

Comment #15 by PredatorBlade00
Monday, August 08, 2011 @ 08:00:21 AM

Yes finally got it... it should be at least 15 gamerscore

Comment #16 by MOZAKATAK
Monday, August 15, 2011 @ 02:57:16 PM

Need help with this one. Send me a message or friend request if interested.

Comment #17 by TigerSanta
Tuesday, August 16, 2011 @ 02:56:59 PM

need help! :( any body else wanna boost!? plz just hit me with a friend request! i'm on standby mode! ;)

Comment #18 by Xbox Rules
Wednesday, August 24, 2011 @ 03:20:56 PM

Going to try and do a free for all boosting lobby send a friend request to me
TIN1E BAC0N and we will do it for all free for all cheevos
reply to this msg or friend request on LIVE thx

Comment #19 by animal6957
Thursday, August 25, 2011 @ 02:36:35 PM

iv been wanting this for years lol
want to get the samuri sword for my
multiplayer suit

Comment #20 by yuca1234
Sunday, September 04, 2011 @ 10:07:21 PM

I am interested in boosting this and all the other ranked (lone wolf) achievements. My skill level is 7 and I am working towards improving it. Right now anyone from skill level 1 to 17 works.
Just send me a message and add me. Must know language trick.

GT: JuanPerez1234

Comment #21 by lunatic1306
Thursday, September 08, 2011 @ 06:11:34 PM

i need this one and other lone wolves ones. send me a message on xbox live my friends list is full. lunatic1306

Comment #22 by ZOMFGAARON
Monday, October 10, 2011 @ 10:00:17 PM

Trying to get this and a lot of other halo 3 achievements add me GT: ZOMFGAARON

Comment #23 by rallo
Monday, October 31, 2011 @ 11:27:15 AM

looking to boost this add me if interested

Comment #24 by iPityTheFool98
Sunday, November 13, 2011 @ 06:38:13 PM

going to try and boost..

We're in for some Chop
Mongoose Mowdown

GT: iPityTheFool98

Comment #25 by kingfatass010
Saturday, November 19, 2011 @ 06:34:12 AM

i will add you mozakatak

Comment #26 by F4NTOM4S
Thursday, November 24, 2011 @ 12:39:07 AM

I'm down for boosting multiplayer achievements GT: F4NTOM4S

Comment #27 by EMartty
Monday, November 28, 2011 @ 09:04:58 AM

Looking for people to do this and other free for all achievements with.
GT:cR Crusade

Comment #28 by yuca1234
Wednesday, November 30, 2011 @ 11:57:20 PM

I am interested in boosting this and all the other ranked (lone wolf) achievements. My skill level is 7 and I am working towards improving it. Right now anyone from skill level 1 to 17 works.
Just send me a message and add me. Must know language trick.

GT: JuanPerez1234

Comment #29 by Unknow 118
Wednesday, December 14, 2011 @ 08:28:57 PM

Hey! I don't know how many people still play this game, and out of those how many are willing to help, but I need this achievement, "killing frenzy", and "maybe next time buddy". Anybody that wants to boost, has other people that want to boost as well (optional, but helpful), and wants to help me with these three achievements please message me over LIVE (no random friend requests please). If I can get these then I will help anybody that helped get their achievos. Thanks!
GT: Unknow 118

Comment #30 by Unknow 118
Thursday, December 15, 2011 @ 07:01:27 PM

just got it! so no more messages please! thanks! (however, if someone wants to do the vidmaster challenge: annual achievement then please message me)

Comment #31 by skidrow18life
Friday, December 16, 2011 @ 02:23:59 AM

need help with these, i will help out those in need too, msg me if u want


Comment #32 by WolderWald
Wednesday, January 04, 2012 @ 01:12:31 AM

need help this and other halo 3 achievements GT: WolderWald

Comment #33 by mikeinshadows
Monday, January 16, 2012 @ 03:27:44 PM

Party needed for achievements. Add me on XBL at mikeinshadows if interested.

Comment #34 by VanillaRAOS
Thursday, January 19, 2012 @ 01:54:49 AM

I need this and some other FFA achievements. My GT is VanillaRAOS and I'm down to boost.

Comment #35 by heraymo
Monday, January 30, 2012 @ 12:36:07 AM

FinalFantasyGod is interested in these please invite

Comment #36 by Xtieq
Monday, January 30, 2012 @ 08:34:26 PM

add me if you wanna do this achievement - XtieQ

Comment #37 by Event Control
Friday, February 03, 2012 @ 03:18:43 PM

Message me for this and 1 other. - Event Control

Comment #38 by Matthew060
Wednesday, February 08, 2012 @ 07:23:05 PM

hey i need some help with this one and a few other my GT is the same as my name send a message and FR if you want to help

Comment #39 by GenRed001
Sunday, February 12, 2012 @ 05:08:11 PM

Im looking to do this one, the laser one, the re jack one, Im in the 15 ranks so message me if u are 9-20 rank

Gen Red001

Comment #40 by ryan1705
Sunday, February 19, 2012 @ 10:47:44 PM

Looking to boost this. Hitting the same people 3 or 4 times in Matchmaking and still not getting a kill. My gamertag is ryanb1705.

Comment #41 by DiaXon
Monday, February 27, 2012 @ 11:16:08 AM

Looking to Boost this and other Halo 3 Achievements

GT : DiaXon

I also have 4 controllers

Comment #42 by IAmDrrunmk
Thursday, April 05, 2012 @ 05:43:38 AM

looking for a boosting party for online achievments GT: IAmDrrunmk

Comment #43 by spencer4908
Saturday, April 07, 2012 @ 03:22:28 AM

This achievement is by far the hardest achievement in the game.. Easily.

Comment #44 by Xfalling DeathX
Monday, April 09, 2012 @ 11:47:26 AM

Looking 4 ppl to boost free for all chivos and annual gt xfalling deathx

Comment #45 by Xfalling DeathX
Sunday, April 15, 2012 @ 05:45:31 AM

Alright to get in a game together you have to be rank 4-24 in lone wolves so pls only message if you meet that criteria

Comment #46 by Don Gregory
Monday, April 16, 2012 @ 03:10:54 AM

im also want this one and a few other ranked achievements i cant seem to get
send message or add me.Don Gregory

Comment #47 by redfiendfyre
Monday, April 16, 2012 @ 01:09:26 PM

hey don gregory, im hosting boosting lobby if you want to join
and if anyone else wants to join they can. gt:redfiendfyre

Comment #48 by Tilith
Wednesday, April 18, 2012 @ 04:10:37 AM

Add me if you want to do this AND the boarding 10 seconds after being boarded achievement.. Gamertag is: HeySeven

Comment #49 by rxgorg
Thursday, April 19, 2012 @ 07:59:35 AM


This is a common message to all.we are having a half an hour session for halo 3 Pain in the ass achievements which are 'Triple Kill' 'Two for One''Overkill' 'Killing Frenzy' 'Steppin Razor' 'Mongoose Mowdown' 'Maybe Next Time Buddy'
The session will start at 4.30 pm GMT 0:00 on april 19, april 20 && april 21. You can join any of these session. Message me if you are interested.

Headset - as communication is very important
English - again the communicaion language
Dedication & Patience - Coz having a private session in halo 3 is little tricky

Message on GT - GROV3R 117

Comment #50 by Chipstits
Saturday, May 05, 2012 @ 11:39:04 AM

this one was reaaaaly easy for me cuz I'm swedish so the my language search restriction worked really well for me and my buddy. that seems to be the easiest way to get almost all of the ranked cheevos according to me.

Comment #51 by ShadowAssasin29
Wednesday, May 09, 2012 @ 09:49:37 AM

Add me for all these matchmaking cheevos. GT shadowassasin29

Comment #52 by JuggaloRydah89
Thursday, May 10, 2012 @ 08:35:24 PM

Looking to do a bunch of FFA & DLC achievements. Hit me up on LIVE. GT - JuggaloRydah89.

Comment #53 by ALNXX92
Friday, May 11, 2012 @ 06:58:26 PM

add 4 all matchmaking achievements even if u want 2 boost them GT: ALNXX92

Comment #54 by GMx MadnezZ
Thursday, May 31, 2012 @ 01:15:15 PM

Boosting lobby, add me please

GMx MadnezZ

Comment #55 by GMx MadnezZ
Sunday, June 17, 2012 @ 03:31:23 PM

gamertag: GMx MadnezZ
make sure youre nat type is open and you must have a mic

Comment #56 by broomica
Thursday, June 21, 2012 @ 03:31:20 PM

i got this by grabing the mongoose on isolation and doing a constant loop (mainly staying underground)and trying to hit people who were busy fighting each other

Comment #57 by Gohl Xadoras
Wednesday, June 27, 2012 @ 09:22:29 AM

Hi Guys

need some people to boost achievements like this one. I only need the overkill, but i will help you with all the achievements you want.

my skill is 24 and my GT is Gohl Xadoras

Comment #58 by Dae1373
Sunday, July 01, 2012 @ 03:19:39 PM

I'm wanting to boost loaaads of these online achievement before Halo 4 come out. I've got a lot to get, but I'm very patient and will try to get as many done as I can, and help everyone else until everyone has got them too! Please message me anytime. Thanks.

Gamertag: Dae1373

Comment #59 by vlada
Saturday, July 28, 2012 @ 02:03:18 PM

Boosting lobby, add me please VLADANRAVEN

Comment #60 by IthepiratekingI
Sunday, September 16, 2012 @ 10:41:34 PM

i need help with this one if you help me i will help you with any achievement you need.

Comment #61 by lubbtobb
Monday, October 08, 2012 @ 12:15:50 PM

i need help with this achievement too... gamer tag: lubtob

Comment #62 by I Snipe IFreaks
Wednesday, October 24, 2012 @ 04:42:20 PM

Need help with this achievement, message me on XBL.

Comment #63 by TicTac TacTiczz
Tuesday, October 30, 2012 @ 07:52:03 AM

boosting achievements; gt: tictac tacticzz

Comment #64 by PBH198st
Saturday, November 03, 2012 @ 11:10:10 AM

I have two controllers and friends to help out who ever want to do this need at least 3 or 4 controllers. Add me gt is (junglefever198) lets do this before halo 4 comes out!

Comment #65 by Intoxicated Rob
Sunday, December 02, 2012 @ 03:49:03 PM

I'm looking to boost all halo 3 online achievements. If you wish to help me my gt is intoxicated rob... all we have to do is do mythic maps with all players we know to get the mythic achievements and then chaneg our languages to a weird one and all start the lone wolves game at the same time and we will be put in the same one and it's even easier now considering very few play. Therefore thsoe achievements are going to be rather easy even this one. Just like taking candy from a baby.

Comment #66 by DragonDarknesx
Thursday, December 27, 2012 @ 10:31:08 PM

Want to boost this one and others so just message me :D GT: DragonDarknesx

Comment #67 by Ninasnum
Sunday, January 06, 2013 @ 12:17:05 AM

The problem I keep seeing is either the players' rankings are too high/low or not everybody is on at the same time. So I'm posting a google doc link right here so we can schedule. Please put in when you are available on the google doc. My rank is 21 and my brother Kijogigo's is 8, I'll be alternating between these two gamertags this week so we can all try to get overkill and any other lone wolves achievements as soon as possible. Let me know if the link does not work for you.

Google Doc Link:

By the way, I'm busy Sunday (1/6) since I'll be doing some Mythic/Legendary achievements sometime after 6 or 7 (PST) with some others.

Comment #68 by Ninasnum
Wednesday, January 16, 2013 @ 05:30:03 AM

Planning a boosting session for Halo 3 achievements Friday (1/18) 3PM PST with some others. If you would like to join, please sign up on the google doc link or message me with your lone wolves rank so I can know when you are available.

Google Doc Link:

Comment #69 by Ninasnum
Sunday, January 20, 2013 @ 01:41:24 AM

My console is currently banned from Halo 3 matchmaking for a month. I will leave the google doc up for those who still want to use it for scheduling purposes.

Comment #70 by Typhoon v1
Tuesday, February 19, 2013 @ 12:58:08 AM

I need help with this achievement. (LW is lvl 5)

GT - Typhoon_v1

Comment #71 by Maw N Paw
Thursday, February 28, 2013 @ 06:54:47 AM

Add me for this achievement: Maw N Paw

Comment #72 by Nerdie4U
Friday, March 15, 2013 @ 12:43:17 PM

hello message me if you are from ranks 15-20 for lone wolves, we are getting a group together to try and attempt all halo 3 free for all achievments. WacthedCrane8

Comment #73 by KnightedLegend
Tuesday, March 19, 2013 @ 11:08:48 PM

Looking to boost this achievement and double spartan lazer kill. I'm level 46. Anyone interested, please feel free to add GT: KnightedLegend

Comment #74 by LumberShrimp
Monday, July 01, 2013 @ 02:48:49 AM

Just wish someone would let me run them over. I've come so close to getting this. lol

Comment #75 by Sigimi
Monday, August 19, 2013 @ 01:30:34 PM

Need to do this and all other Multiplayer achievements.
I have a mic, good internet, and all the DLC.
My GT is: WinglessFoot
I'll do them anytime and I have 3 controllers just send me a message.

Comment #76 by BIOxDEATH
Thursday, August 29, 2013 @ 07:24:50 AM

Looking to boost most FFA cheevos GT: BIOxDEATH

Comment #77 by D Forzstek
Sunday, September 08, 2013 @ 09:16:53 PM

Hello , Looking to boost Halo 3 Ranked multiplayer achievements! please add me and send a message saying to boost H3MA. and state what time works for you!

Comment #78 by Sigimi
Monday, September 30, 2013 @ 04:38:03 PM

Need to boost all free for all achievements ASAP since Halo 3 will be free on the 16th of October. My GT: WinglessFoot

Comment #79 by A Real Psycho
Tuesday, October 22, 2013 @ 12:19:51 AM

Looking to boost all MP achievements and all DLCs as well. will help as well and I need them all. Just message me on xbox and we can arrange to do them all fast

GT: DarkShadow ohh

Comment #80 by twoogle
Thursday, October 24, 2013 @ 02:10:52 AM

Need to get this, I'm a 45 so everyone will need to be around that level

gt - twooogle

Comment #81 by Blood Knight83
Sunday, November 03, 2013 @ 01:59:20 AM

I'm lvl 9 in Lone Wolfs looking to boost FFA achievments with a like minded
Group mssg me GT: Blood Knight83

Comment #82 by delta3xray
Thursday, November 07, 2013 @ 10:28:18 PM

This achievement is absolutely retarded. I wish people would just understand that OBVIOUSLY when I'm trying to splatter someone with a slow mongoose that has no purpose whatsoever, I'm trying to get the achievement. I let some other guy get the achievement just to be nice, but I doubt anybody will ever let me get it because they suck.

Comment #83 by Blood Knight83
Friday, November 08, 2013 @ 04:18:33 PM

A friend and me were trying to help each other get this a few nights ago and some douce kept either killing us or blowing up the Mongoose when it was clear we were not in it for the match so i feel your pain :(

Comment #84 by Blood Knight83
Friday, November 08, 2013 @ 04:21:28 PM

delta3xray if u want to try to get this one with me shoot me a mssg at GT: Blood Knight83

Comment #85 by Aerdo
Sunday, March 09, 2014 @ 03:45:13 AM

Need this and Maybe Next Time Buddy. Level 30 in Lone Wolves. GT - Aerdo

Comment #86 by IKV91
Sunday, March 09, 2014 @ 06:14:41 PM

I'm looking to boost almost all of the multiplayer achievements. I have all of the map packs. GT:IKV91.

Comment #87 by Swatson88
Sunday, March 16, 2014 @ 03:08:47 PM

Looking to boost multiplayer achievements. Gt: Swatson88

Comment #88 by Phenominality20
Wednesday, March 26, 2014 @ 03:55:46 PM

will help anyone with multiplayer achievements, anytime. msg me in game with halo 3.

GT: Phenominality

Comment #89 by lornesbored
Thursday, June 19, 2014 @ 03:33:45 AM

Looking to boost all Lone Wolves achievements:

GT: Lorne117

Comment #90 by hooser01
Monday, July 14, 2014 @ 03:27:27 AM

Looking for MP achievements. Message me on Live with my same username here.

Comment #91 by TheOtherSideOfAngry
Monday, July 28, 2014 @ 01:25:37 PM

Need this and a couple other online achievements. GT: RBlakely

Comment #92 by TheOtherSideOfAngry
Thursday, July 31, 2014 @ 12:28:25 AM

UPDATE - got this achievement thanks

Comment #93 by EyeLessJester
Wednesday, September 03, 2014 @ 12:15:18 PM

last achievement i need and seeking help with this possibly boosting if it makes it easier to get.GT:EyeLessJester

Comment #94 by airrocker001
Monday, October 13, 2014 @ 05:57:25 AM

Need this achievement and a few others for lone wolves type games. GT: SlayertheElite

Comment #95 by jmusilli
Monday, November 10, 2014 @ 02:39:37 PM

Looking for some help in completing the game. Just need this one and Two for One. If you're interested and can help, send me a message. My lone wolves rank is 41.
GT: A Its Johnny

Comment #96 by Zeus Nemesis 33
Thursday, September 10, 2015 @ 12:46:21 PM

looking to get this one and also help with others gt same as the name here

Comment #97 by RandomDero
Wednesday, January 06, 2016 @ 11:58:25 AM

Keen to do this and other online halo 3 achievements if anyone is willing to help still, I have three controllers all up.

GT: Random Dero

Comment #98 by TheAnodyneWonder
Sunday, July 24, 2016 @ 07:05:52 PM

I need this, as well as the remaining lone wolves achievements. Will gladly work together to obtain these achievements and help others do the same. I'm still a level 1 in lone wolves so people know. GT is "Anodyne SL"

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Game Info
Bungie Software


US September 25, 2007
Europe September 26, 2007

Resolution: 720p
Sound: Dolby Digital 5.1
Online Players : 1-16
ESRB: Mature
HDD Space Required : 5.8 GB
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User Score is based on 7872 user ratings.