Alright so me and my friend both have left 4 dead 2 and we are still after this achievement.. Right now he is on holiday and will be back by the saturday of this weekend.. We both have 2 controllers and are on the XBOX pretty much all the time.. So if theres still anyone looking fo this achievement.. could we please help each other?? Send me a friend request and a message as i wont always be checking this thread as ill forget!! Anyone who helps i will glady help them with any other achievements as i am a Gamerscore whore.. So i can pretty much get you any on this game!... thanks FLAME DAINGER97