Left 4 Dead 2

Left 4 Dead 2 Achievements


Revive 10 incapacitated Survivors while under the speed-boosting effects of adrenaline.   

You can find adrenaline near where most medical supplies spawn. Sometimes they are randomly spread through the levels or inside the saferoom.

Once you have found an adrenaline shot hold onto it until one of the other survivors needs help. Press to equip the adrenaline and press to use it. Once you are under the effects of adrenaline hold down near the survivor that needs help.

Repeat this 10 times for the achievement to unlock.

Survival Technique:
Mode: Survival
Level: Dead Center Atrium
Players: 2 (two controllers/players)

Once you load the level pick up the adrenaline/defibrillator depending on the achievement you want to do. Kill the AI as they may cause you to miss out on reviving your team mate. Take the second controller or other player and throw them off the higher level of the mall complex. Run over to them and revive/defibrillate them. Once you have done this press and restart the round. Repeat this until you have both achievements.

Rate this achievementAverage Rating (Based on 2 votes)
User Comments
Comment #1 by Tidalwave
Friday, January 14, 2011 @ 04:59:38 PM

This one isn't making sense. I have my second player jump down and become
incapacitated (meaning laying on the floor calling for help, not dead)
Yet when I use the adrenaline and helped her up, it didn't count, this has
happened multiple times on the same map/game, as well as when I restart
the map from the beginning, only two out of all the times i tried counted.
The shock one does seem to work though, anyone else know why this isn't working?

Comment #2 by KillerDonut96
Wednesday, January 19, 2011 @ 06:38:58 PM

Maybe it doesn't allow you to do it on multi

Comment #3 by KillerDonut96
Thursday, January 20, 2011 @ 11:25:45 PM

Try it on survival mode with other xbox live players ONLY

Comment #4 by iiNLOVee
Monday, January 31, 2011 @ 07:31:41 PM

You also need to wait a few seconds for the shot to register. I had the same problem. I just waited until I saw the blood frame my screen and then I went to help them.

Comment #5 by Capt AwesomeDP
Friday, February 11, 2011 @ 07:44:52 PM

There was a really easy way in the first Campaign to get SHOCK JOCK & THE QUICK AND THE DEAD. Grab two controllers and have P2 take a break from the start, then run through the hotel making sure to grab the adrenaline with P1 (and P2 if you find another) and the defib paddles along the way, they are almost always in the first part.

In the hallway just before you get to the elevator all the way back is a stairwell that has fire blocking you from going downstairs. Have P2 come back from the break and stand in the fire until they are incapped use the shot with P1 and pick them up (the AI will usually stay in the hallway (if P2 has a shot give it to P1 and repeat). After you are out of shots just have P2, holding their med pack so the AI doesn't heal them, stand in the fire until they di

Comment #6 by Konner94
Sunday, March 20, 2011 @ 01:13:13 PM

looking for people to work together on left 4 dead 1 and 2 and get achievements its awin win situation all work together it would be nice if i could find 2 other people at least please message me and im 16 so if your someone wondering if im like 10 or something. my gamer tag is "Konner94".

Comment #7 by SkillzThatEnvy
Sunday, April 17, 2011 @ 01:06:46 PM

By far the most annoying achievement !! =/

Comment #8 by Opiate42
Monday, July 11, 2011 @ 10:58:39 AM

Nah, not really, just luck of the random shot spawns. Can be done with friends or AI. Just replay the sugar mill a few times, tons of witches that one-hit incap a player. Position your teammates to startle a witch after you find a shot and let her knock down a teammate.

Easier if you set it to Advanced, the witch will take more shots from the AI survivors firing from a distance allowing you a bit of extra time to take the shot and get close to revive before any of them do it. Otherwise on Easy or Normal the witch dies quick and the AI zip in and revive before you can.

Did this way in less than an hour without even using a second controller. Am now doing the same for Shock Jock but taking a bit longer, defib paddles don't seem to spawn as often or the witch dies first before killing

Comment #9 by zeppelinrules89
Friday, August 05, 2011 @ 12:28:59 PM

It took me awhile to figure out I need to wait a couple seconds after taking the shot for it to register.

Comment #10 by DraVenFrost447
Wednesday, July 11, 2012 @ 05:20:17 PM

Yea it'd be easier if the damn AI wouldn't beat you to the punch.. bastards.. -_-

Comment #11 by ufc fan andy
Monday, July 23, 2012 @ 08:29:59 AM

i was on 8/10 for defibs and 7/10 for this , i did the 2 control crap listed here 5 times and no change went through a campaign done a few each and still no change what the fuck is with these achievements now?

Comment #12 by L4D Pills
Monday, July 15, 2013 @ 01:52:12 AM

I just got this achievement tonight using splitscreen. First, connect your second controller and set up a friends only game of survival (i recommend playing on atrium) once your in the actual lobby where you pick characters, switch it to public game and start but make sure you kick people out when they join. Use you second controller to go to the second floor of the atrium and have it wait there. Use you first controller to get the adrenaline shot and stand by the radio (the round has to be started for this to work) when you are ready start the round then use you shot, use ur second controller to jump off the second floor then help yourself up. When i got to 6/10 it stopped working but o just went to main menu and started over and it works, hope this helps

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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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User Score is based on 2619 user ratings.