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.
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