From imaloony8.0 | 4th Jun 2009
This one is pretty straight forward. Pick up a Molotov cocktail from anywhere. Normally they're tucked away in corners, but there's also a couple at the start of the Dead Air campaign. Next, find a Witch. When you hear the crying and music, you're close. Turn off the flashlight, as it makes it much easier. In the dark, she is illuminated red. Now, pull out your Molotov, get close to her (Not too close, you can do it while she's charging, but it's much more difficult) and drop it on her. Now, backpedal and kill her. She doesn't actually have to die for you to get the achievement, but why let her live?

From imaloony8.0 | 4th Jun 2009
Simple. When a Boomer comes trotting your way, dodge his vomit, and then run forward and shove him and back up. Wait until he's at the end of his falling backwards motion, and then shoot him. Be careful, as any survivor he explodes on will stop the achievement from unlocking.

From imaloony8.0 | 4th Jun 2009
Make sure you have a Med Kit, and just wait until your health is below ten, and heal another survivor with you Med Kit by equipping it, walking up, and holding LT. If another survivor tries to heal you before you can heal them, pull out your Med Kit, and they should stop healing you. Or just punch them, that might work too.

From imaloony8.0 | 4th Jun 2009
You can punch relatively fast, so simply stand in front of a Hunter and keep hitting LT. Sometimes, if you just keep punching him, he'll try to jump but can't, and you'll get the achievement that way too.

From imaloony8.0 | 4th Jun 2009
Let one of the survivors get killed (Or set it to the hardest difficulty and just kill one yourself before setting it back) eventually, you'll see the highlight of that survivor somewhere banging on something. Make sure that YOU find the door they're behind and YOU open it. If someone else does it, you won't get the achievement.

From imaloony8.0 | 4th Jun 2009
Actually pretty easy. When a Hunter comes around (You'll know because you can hear him growling and snarling) don't kill him, but let him pounce. Just make sure he doesn't jump on you, and when he jumps on one of your buddies, make sure no other survivor kills him, and run up and melee the Hunter off the pinned survivor.

From imaloony8.0 | 4th Jun 2009
Easy. A lot of the times when you enter a room the infected are sitting down or relaxing, or whatever. Even if they know you're there, it takes them a couple seconds to get ready. Run up behind one and melee it in the back for the achievement.

From imaloony8.0 | 4th Jun 2009
Tanks are relatively big targets, so just walk around with a Molotov (In Dead Air, the beginning area has a couple Molotov's on the table) and when the Tank appears, pull out you Molotov and make sure you hit him with it to get him ablaze.

From pwnthemonkeys | 30th Jun 2009
Choose a campaign (I suggest death toll chapter 4) that gives you teir 2 weapons in the begining of the chapter (auto weapons) and pick up a sniper.Simply fire at the zombies in the distance and either wait for them to respon or just restart the chapter.

From pwnthemonkeys | 5th Jul 2009
I suggest to have someone willing enough to get boomed on and just make that person crouch and start shooting the zombies off of that survivor,or play verses with some friends and have someone get pounced/smoked multipule times and just save that person.

From imaloony8.0 | 6th Jun 2009
Whenever a Smoker grabs a survivor, kill the Smoker before they can get the survivor over to them. It's actually pretty easy, as they begin to scream when the Smoker begins pulling them. As long as they haven't reached the smoker and you kill the smoker, you'll get a count for this achievement. Wash, rinse, repeat until you have 10.

From imaloony8.0 | 4th Jun 2009
To get this you can simply replay the first chapter of Dead Air over and over. The area you start in has a few Molotov's, so pick one up, open the door, and toss it in. Wait for them to burn, and then restart and do it again until you hit 101.

From TheLeft4DeadInfected | 1st Jul 2009
Ok when your at the safehouse (must be on expert) incap one of the survivors get into the safehouse.Close then open the door revive him and get back inside with the revived survivor.

From GlitchDude | 3rd Nov 2009
or you could just be destroyed and explode on the survivors.

From jpcurnutte | 8th Jun 2009
(easier on dead air)on the first level(at start)force the surviviors into the green house sneak behind them and bam you got it...................................easiest way

From pwnthemonkeys | 6th Jul 2009
If you have a friend you can easily get ths achievement.Get far a way as possible and then turn around until you can see the circile turn red,but still at a distance.Do this correctly and you got an easy 20GS

From GlitchDude | 3rd Nov 2009
When you get vomited on go in to the safe room you came from and dont take damage

From imaloony8.0 | 4th Jun 2009
An easy way to do this is to simply back into a corner and toss a Pipe Bomb into the area once a Boomer vomits on you, and then begin to use your Melee attack over and over again. If you or any other survivor haven't taken any damage once your vision clears, that's 2 more GS under your belt.

From Seamoose | 8th Jul 2009
Easy once you get a tank and in your in a campaign with cars. Just punch a car at the survivor(s). and ussually does enough damage to get this cheat.

From pwnthemonkeys | 5th Jul 2009
This one can be either easy or extremely hard to get, depending on how the IA director hates you.I suggest you should do this with some friends because for some reason bots have the power to set off witches out of no where.

From poleio | 4th Aug 2009
Easy just when you hear a smoker huddle up next to each other and meele each other or just shoot it once somebody gets grabbed

From poleio | 22nd Aug 2009
Easy every time you reach a safe house take a med and heal someone

From TheLeft4DeadInfected | 1st Jul 2009
Expert Mode

Keep incapping the survivors while in safehouse.
Lol..

From pwnthemonkeys | 30th Jun 2009
If you can push a hunter of a building all you have to do is wait untill it starts jumping up and down and simply shoot it or get a friend to be a hunter and let him go off map and jump up directly aiming towards and all you have to do is just shoot.

From pwnthemonkeys | 6th Jul 2009
if your a smoker and there is only one person in the safe room stupid enough not to close the door the you just got that achievement,or just have a friend let them kill you.

From pwnthemonkeys | 6th Jul 2009
Die as many times as you want just as long as all of the 4 survivors enter the rescue vehical.

From TheLeft4DeadInfected | 1st Jul 2009
1 Survivor Facing Left.
1 Survivor Facing Right.
1 Survivor Facing Forward.
1 Survivor Facing Backwards.

Keep killing zombies or special or tanks.
All moving TOGETHER!!!

From TheLeft4DeadInfected | 1st Jul 2009
Keep giving pills back and forth?
LOL
Well it works!

From TheLeft4DeadInfected | 1st Jul 2009
Easy peasy.
Throw a Pipe Bomb when a horde is coming.

WARNING.
It may not work SO KEEP TRYING!!!!

From poleio | 21st Jul 2009
This one is sorrta easy it just takes a while keep playing the finales get on the machine gun and call the radio

From pwnthemonkeys | 5th Jul 2009
Do easy mode, stick together,and abuse the hell out of the health packs and pain pills.Simple as that.

From poleio | 11th Aug 2009
Go through no mercy and turn full captions on and dont take any shortcuts you dont want to risk every time you hear a bommer sit still and look around and shoot it.Also if somebody shoots it and it dosent vomit on you it counts

From TheLeft4DeadInfected | 1st Jul 2009
Rush through a entire campaign?
I suggest Dead Air or No Mercy.

From TheLeft4DeadInfected | 1st Jul 2009
Well the bests place for this is Runway Finale
or a place with a lot of space.

Here's what you should do:
1.All survivors must have a m4a1,auto shotgun nothing else.
2.Have a molotov.
3.When the tank comes make sure you know where it is.
4.Get out to open space and keep going back
5.Throw a molotov in its direction.
6.Once it is burning keep moving into a space where the tank isn't going.
7.Keep shooting it.
8.Or go on a space where the tank can't get you.

Hope this helps!

From pwnthemonkeys | 5th Jul 2009
If you are getting smoked from behind press the RB button and shoot the smoker, if your lucky enough you wont be constricted until you touch the smoker so you can also just melee the smoker.

From Seamoose | 8th Jul 2009
If u can execute the crowned achievement. You will also get this one. Or you and friends can stay far away from her throw a Molotov and shot her down.

From pwnthemonkeys | 5th Jul 2009
Play versus mode or survival alot of times.A campaing in versus usually nets you about 1,000 kills.

Now there is a glitch where all you have to do is get a boomer to spawn near you make it follow you to the safe room,pust the boomer out of the safe room and let him boom on you.Once boomed on just melee the zombies behind the safe room door,this makes the boomer live and netting you about 500 to 1000 kills per hour (this count may not be accurate so it maybe more or less) so I guess just keep doing that glitch for 56 hours and boom you got the achievement.

From pwnthemonkeys | 30th Jun 2009
Correcting imaloony8.0 you can not use explosives in order to get akimbo assassin.

From imaloony8.0 | 4th Jun 2009
This isn't really as tough as it sounds. When the campaign starts, DO NOT pick up any weapons form the table, trunk, or whatever. Stick with the pistols. It is also recommended that you use the Easy difficulty setting. Now, go through the whole campaign with only the pistol. It's a really good idea to pick up another pistol as soon as possible. Duel wielding will not break the achievement, but jumping on a turret will. I'm pretty sure you can use explosives too, but since the pistols are accurate and fairly powerful, this achievement isn't very hard.

From TheLeft4DeadInfected | 1st Jul 2009
Get behind a witch, once it starts getting up just shoot it with either a Hunting Rifle or a shotgun.

From poleio | 20th Jul 2009
Get incapped and let a hunter or smoker get your partner then just shoot it

From pwnthemonkeys | 6th Jul 2009
Tell everyone to not shoot the tank, just throw a molotov,and run.

From MASHsux2008 | 15th Jul 2009
Do this on no mercy. Easy. Go on opitons and put on full captions. Than when it sais a certain infected. BE PREPAIRD

From pwnthemonkeys | 6th Jul 2009
Do this on easy and with bots.You can get akimbo assassin with this.All you have to do is get out of the way of the bots and just melee instead of shooting.

From poleio | 21st Jul 2009
This one is easy at the start of the campaign grab a gun and a med but your not going to use it and ever time someone tries to heal you just pull out your medkit easier online though

From pwnthemonkeys | 5th Jul 2009
You can use pain pills and I suggest playing with real people because bots will automaticlly try to heal you once you hit 40 below health.

From pwnthemonkeys | 30th Jun 2009
There is a glitch for dead air that will alow you to get this achievement more easily.Get some friends (doesn't matter how good or bad they are) and start the end of that campaign.Clear everything and get a gas cylinder,gas can,ect. and pusch one or two of the luggage carriers close to the nose of the plane(I will put how to do that glitch at the bottom).Now jump on top of the carrier(s) and jump on the nose of the plane,make it to the center of the plane and have someone start the the gas pump.Now with all of you on the center of the plane just start meleeing each other so you wont get hit be a smokers snare.Dont worry about the tanks because they have terrible aim an are unable to climb on top of the plane.Wait it out and just get in, but make sure you jump to high or you'll hurt yourself.

How to push the carriers:Grab an explosive gas cylinder,gas can,ect. and stand right behind one of the carriers.Throw the item you're holding and just walk foward with the carrier being in front of you,it may go slow but you are capeable of moving the box to your destination in less that 7 minutes (if you know what you're doing).

From imaloony8.0 | 4th Jun 2009
Very tough, but possible. It's ideal to have all four people filled by humans, all with rather good shots. Now, go to the final chapter of Death Toll and have all the survivors get to the end and equip themselves with Pipe Bombs and M16s. Have three survivors run out to the dock and the fourth trigger the boat before he runs there himself. From there, all the survivors use their assault rifles to pick off the infected. Beware of the Smokers, and Tanks. It's a good idea to have one or two members to have Molotov to deal with the Tank. Once the rescue boat appears, Survivors alternate throwing pipe bombs to distract the infected while you get on. You will not get this on the first try, but keep at it, and you'll have 30 new shiny achievement points.

From Seamoose | 8th Jul 2009
For this one play the no mercy campaign and in the first scene go to the right side of the building and jump on the air conditioners.
That will help you get threw a big part of it. And also in the third scene to skip the gas station crescendo event there will be a door on the opposite end of the crane under the awning and if u keep on meleeing the door it will eventually break. And in scene four after you activate the elevator stand in the corner with yourself and the rest of your team and just keep meleeing and the infected will eventually die out. And for the finale there is an invincible room glitch just look for "invisible room glitch in no mercy". on www.youtube.com None of these will work in versus and i recommend playing with your friends on xbox live

From pwnthemonkeys | 4th Aug 2009
Get some really good players and do every single glitch you know on the campaigns.Use pain pills on helping out your health, use health packs when you see black and white or gray (whatever you like to call last incap means death).Also it doesn't matter if you're terrible just as long as you get in the vehicle.