another Left 4 Dead help

i know theres alot of posts with need help with the ''nothing special'' achievement.....but i already have 1 other person that wants this achievement to so i was lookin for 2 other people that know how to play the game and know what to do to get this achievement...so send me a friend request and a message saying that you wanna help with this achievement.... thanks happy gaming everybody....and happy holidays Xbox gamertag--- ace69murder187