Left 4 Dead 2

Left 4 Dead 2 Achievements


Collect 10 vials of Boomer vomit from infected CEDA agents you have killed.   

Always look for the Hazmat Infected while running through Dead Center. As soon as you see them check around their bodies once you kill them to find Boomer bile. They don't always have these canisters so this may take several attempts to do.

Once you find the bile pick it up and either user it, or you can hold onto it and wait until you find another Infected with more bile. You can then use the bile you have and pick up the freshly dropped bile.

Repeat this 10 times for the achievement to unlock.

Rate this achievementAverage Rating (Based on 2 votes)
User Comments
Comment #1 by megamanxzxz
Monday, May 31, 2010 @ 04:00:20 PM

hey so one strategy that seems to be working fairly well is just play the first level of dead center and usually there is a CEDA worker thru that first door or really close by. So i kill them and if they dont have one i just restart. Its been and hour and i am at 6. Hope that helps.

Comment #2 by Syberpro
Tuesday, December 28, 2010 @ 10:46:01 PM

- Start campaign dead center CH:2 Streets

- Work your way to the "save 4 less" store (where u grab the cola)

- Kill all agents ( Bio suits ) along the way and pickup the Boomber Vomit
-If you get to the store and still need more , just set the alarm, hordes will keep coming with random agents.

Video if you don't understand :

Comment #3 by Syberpro
Tuesday, December 28, 2010 @ 11:19:10 PM

Also a good tip is put yourself on Easy mode right beside the store ( save 4 less ) there
is a ice container ... go and camp on it and let all the bots kill the zombie while u look once and while to see if agent drop bile

Comment #4 by volcano269
Tuesday, January 11, 2011 @ 04:37:39 PM

If you can't find any like i did on easy and normal switch it to expert difficulty as all the hazmat zombies have one

Comment #5 by electriXynapse
Sunday, August 14, 2011 @ 12:15:45 PM

Having the passing DLC really makes this achievement a breeze. There are tons of CEDA agenets

Comment #6 by xpyro16x
Friday, September 09, 2011 @ 10:01:54 AM

i have three out of ten but for some reason everytime i kill one they dont drop anything.

Comment #7 by johnsnbn19
Monday, May 28, 2012 @ 01:15:31 AM

The Sacrifice DLC is where I feel is the best to do this. I had none until this part, very first part where u have to release the tank, I just let them keep spawning (before i released the tank) and within ten mins I got the cheevo, kill one, throw bomb, take bomb, repeat. Actually started to like the "spitter goo" better that pipe bomb. Good Luck!

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Game Info
Electronic Arts


US November 17, 2009
Europe November 20, 2009

HDD Space Required : 4.36 GB
Backward compatible on Xbox One: Yes
Price: $19.99USD
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