Halo Wars

Halo Wars Achievements

Drain Cleaner

Kill 20 enemy squads with a continuous Covenant Leader Power on Memorial Basin.   

Offline Method:
Start a 1v1 on Memorial Basin, standard game mode, set the AI to Easy and their leader to Cutter. Set yourself as the Arbiter. Start by building your leader temple and supply pads. Go take all but his base on the map and build nothing but supply pads. Keep upgrading them and your Arbiter. When you have around 3,000 resources, head to the reactors and build locations, killing all the rebels whilst in Rage mode. Whilst still in Rage, head to the other places, this should get around 17 of the 20 kills needed, so head to the AI's base and kill his army until you get the achievement. Just remember to stay in Rage the entire time!

Online Method:
Start a 1v1 on Memorial Basin, standard game mode, both set as the Arbiter. Start by building your leader temple and supply pads. Go take the bases on the map and build nothing but supply pads. Keep upgrading them and your Arbiter. When you have around 3,000 resources ask your friend to send 20 Suicide Grunts, then kill them all whilst you're in Rage mode and the achievement is yours.

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User Comments
Comment #1 by TheJackal204
Sunday, December 19, 2010 @ 03:25:39 PM

a way to do this is to have one player as the Prophet of Regret upgrade his sepecial to the max and have your opponet build 20 engineers and then have the Prophet distroy all of them and Bleep Bloop the Acheivement is yours message me and I will help you my Gt is TheJackal204

Comment #2 by michael motorcycle
Monday, January 17, 2011 @ 07:06:49 PM

thank u if ur going to help

Comment #3 by GeneralKenobi_2
Friday, March 11, 2011 @ 11:29:23 PM

Why do you have to use that gay ass word! "while" works, and you don't sound like you have a stick up your ass!

Comment #4 by Jan Grover
Monday, June 20, 2011 @ 06:05:55 AM

If you have the strategic options DLC there might be an easier way of doing this.

Here's what I did:
- play as prophet of regret against cutter on easy
- choose the gametype reinforcements
- take all the bases but one and built lots of supplypads
- upgrade your prophets beam to the max
- now take your prophet to the one base of cutter and start your prophets beam in front of his base(where his units will exit
- If you have enough supplypads, you will be able to continually have your beam activated
- now just wait for the next round of reinforcements to spawn in your beam and they will be killed intantly
- if the achievement doesn't pop up, just wait a couple of round more, it will come eventually

Good luck!

Comment #5 by pmatq
Friday, July 01, 2011 @ 12:52:13 PM


Comment #6 by SPECTER723
Wednesday, August 03, 2011 @ 07:01:47 PM

Start up a skirmish game against easy AI on reinforcements. Play as the arbiter and upgrade him completely. Aquire 3-4 bases and max them out with supply pads and you should be able to stay in rage mode without losing any resources. Then simply kill the enemy reinforcements until the achievement pops.

Comment #7 by Opiate42
Tuesday, August 09, 2011 @ 08:01:22 AM

Good idea, will try tonight.

Comment #8 by dillon2102
Tuesday, August 16, 2011 @ 03:17:45 PM

Add me dillon2102. I also need other dlc achevments

Comment #9 by dillon2102
Sunday, September 04, 2011 @ 08:13:00 PM

Add me i also need the killjoy achevment dillon2102

Comment #10 by Mordrill
Thursday, September 15, 2011 @ 02:05:37 PM

Need this

GT: Mordrill

Comment #11 by tranman1
Sunday, December 25, 2011 @ 07:42:59 PM

IF u wanna boost this and killjoy send me msg GT : xX H311Spawn Xx

Comment #12 by cpdufohunter
Sunday, January 08, 2012 @ 09:34:20 PM

Don't use boomstick skull if you're doing the offline method. I got 18 kills then a marine exploded killing Arby and I had to kill another 20

Comment #13 by KevmonD
Monday, January 30, 2012 @ 12:20:45 PM

I need some help getting this and the Killjoy achievement

GT: KevmonD

Comment #14 by OnwardBrownBoy
Saturday, February 04, 2012 @ 09:36:15 PM


Send me a message telling me what achievement you need help with.

Comment #15 by ALNXX92
Saturday, May 12, 2012 @ 03:08:49 AM

need this one an killjoy GT: ALNXX92

Comment #16 by Greedycum
Sunday, May 13, 2012 @ 05:03:02 AM

Arbiter sounds like the funniest way. I'll do that ;)

Comment #17 by Greedycum
Sunday, May 13, 2012 @ 06:35:02 AM

And it was fun!

Comment #18 by cbech492
Wednesday, May 30, 2012 @ 02:55:54 PM

if anyone can help me with this cheevo friends request me: U IN R A T E D and i also need help with the killjoy one as well. thanks.

Comment #19 by ratman7891
Monday, August 27, 2012 @ 12:22:14 PM

This one is easy. Just play a Deathmatch Skirmish on Easy with Prophet. Take over every base and make Supply pads in all of them, turrets would be nice. Then send your Prophet to the enemy base and activate your Cleansing power and only kill units that appear from the base. The Leader Power prevent the leader from using his own attacks and the Supply pads ensure your cleansing never runs out. Now just wait and kill all units (not buildings). Took me about 15 mins from the point i began cleansing. I actually left my cleansing running on the enemy rally point and i didnt even have to move it around because they just walk into the beam.

And if you want, you could put the controller on your head as a 15mins vibration really massages your head haha.

Hope that helped.

Comment #20 by mvitanza
Saturday, November 30, 2013 @ 08:51:59 AM

Anyone have a spare DLC code that came with the platinum hits version they could send my way. Willing to boost all the online and DLC achievements.
Message me on live GT = Mikey V69

Comment #21 by HaloCompletionist
Thursday, December 15, 2016 @ 05:10:29 PM


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Game Info
Ensemble Studios


US March 03, 2009
Europe February 27, 2009
Japan February 26, 2009

HDD Space Required : 5.66 GB
Backward compatible on Xbox One: Yes
Price: $19.99USD
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User Score is based on 2878 user ratings.