Aliens: Colonial Marines

Aliens: Colonial Marines Achievements

Short, Controlled Bursts

Defeat all Xenomorphs in the Sulaco hangar bay without them crossing your barricade  

About halfway through mission 1, you will return to the hangar bay where there is a keypad Keyes will try to open while you defend a small barricade between him and the dropship. Stand between the barricade and the dropship and stop the aliens until Keyes opens the door and tells you to fall back. Watch the video below for the strategy and when to fall back.

Video Guide by PowerPyx:


Rate this achievementAverage Rating (Based on 1 votes)
User Comments
Comment #1 by Play Up Pomp3y
Sunday, December 30, 2012 @ 05:58:23 AM

Thought the Sulaco was on its way to Fiorina 151 with Ripley, Hicks and Newt on board? WTF is with this half-and-half story? Either stay totally faithful to the Movies or be original. (Or I'll roll in a couple of canisters of CM20 and nerve gas your whole fucking nest!)

Comment #2 by stealthpenguin
Monday, January 14, 2013 @ 05:07:22 PM

That's the whole point of the storyline. The Sulaco is re-routed back to LV426 after Ripley and crew are ejected on Fury 161.

Comment #3 by BasqueNYC
Monday, January 21, 2013 @ 07:01:52 PM

Hicks is the man too bad they offed him in "Alien 3"

Comment #4 by Kezijin
Tuesday, February 12, 2013 @ 06:10:54 AM

#1, Kudos on the comment but this is pretty faithful. We don't know what happened to the Sulaco after Ripley and co were evacuated over Fiorina. This game picks up afterwards and for some reason (that i won't tell you) the ship has found it's way back to LV-426

Comment #5 by Capt_Ron CFH 01
Wednesday, February 13, 2013 @ 08:38:34 AM

I couldn't get this on Ultimate Badass. Xenos were rushing the barricade 2-3 at a time and some where jumping straignt into the middle. Maybe I should try running around the dropship to try and lure them away from the barricade.

Comment #6 by Deadspace00
Wednesday, February 13, 2013 @ 10:15:33 PM

A little hard seeing as how they can melt through the barricade

Comment #7 by Kezijin
Friday, February 15, 2013 @ 08:06:00 AM

If you have claymores, then set yourself a little perimeter, if'll be hard but it can be done. I set up my only claymore to the left of the barricade and when Keyes started his bypass, i threw all three of my frag grenades onto/around the dropship. I then positioned myself outside the barricade, with Hick's shotgun and just spam-fired it (ironic, considering the title of the achievement). As soon as the door opened, i ran through and it popped. Frustrating, took a few attempts

Comment #8 by RCone138
Friday, February 15, 2013 @ 04:35:50 PM

someone want to co-op this with me?

Comment #9 by RCone138
Friday, February 15, 2013 @ 05:29:47 PM

nevermind, i got it

Comment #10 by Knomadic
Sunday, February 17, 2013 @ 10:10:49 AM


Thanks for the guide. I'm going to try this achievement right now.

Comment #11 by EternityInGaming
Tuesday, February 19, 2013 @ 08:41:30 AM

Video Helps alot on where to position yourself

Comment #12 by uratitmouse
Wednesday, February 27, 2013 @ 11:26:24 AM

anyone want to coop this with me GT uratitmouse

Comment #13 by vintagegamer24
Monday, March 18, 2013 @ 02:59:02 PM

This one was fairly difficult for me. I did it on recruit. I used a claymore, battle rifle with the mine attachment, and pulse rifle with the fire bombs. I placed my claymore and some battle rifle mines and stood to the side of nearest entry point so I could see as the xenos got close to breaking through. The achievement pops immediately after killing the last xeno.

Comment #14 by PHOPOW
Wednesday, March 20, 2013 @ 08:26:40 PM

Got it on my third try. Thank God you can always restart a check point.

Comment #15 by jpace731
Saturday, April 06, 2013 @ 10:55:16 PM

to anyone complaining about the story.... it was mostly taken from the Aliens 3 script for the movie that was never released/ Similar to the Ghostbusters game.

Comment #16 by CellFrame
Sunday, April 21, 2013 @ 12:01:12 PM

Something weird happened to me when going for this achievement. After dying and/or restarting the checkpoint about 10 times the last wave of Xenos didn't appear, making the achievement extremely easy. Don't know if this was just a glitch or done on purpose by the developers, if you struggle too long on this part in the first level.

Comment #17 by LordBane
Saturday, April 27, 2013 @ 03:24:20 PM

anybody want to co-op this with me giving me a hard time/LordBane001

Comment #18 by goldbergsdragon
Thursday, August 01, 2013 @ 10:16:24 AM

*Achievement/Trophy Hunters*

Comment #19 by chris98956
Monday, May 26, 2014 @ 03:06:02 PM

i need a partner to help me get this. chris98956

Comment #20 by LovecraftsTentacle
Saturday, July 12, 2014 @ 10:12:35 PM

Looking for a partner(s) for this.
GT: DeadShade 84

Comment #21 by synchro
Tuesday, March 03, 2015 @ 01:38:47 AM

i've tried this time and again on recruit level but there's always at least ONE that just leaps/pounces thru the barricade and there no stopping them at that speed.

do they respawn somehere? if i could lay a shitoad of SHARP harpoons around the spawn point, then use the battle rifle to prox the outskirts? i think hey'd destroy themselves and i could waste whatever's left.


Comment #22 by Earthbound_X
Thursday, December 03, 2015 @ 03:19:45 AM

LMAO! It popped right after I died and the door opened.

You need to register before being able to post comments.

Game Info
Gearbox Software


US February 12, 2013

You need to log in or register to use MyAchievements.




You need to log in or register to rate games.

User Score is based on 206 user ratings.