Yea all my friends who dont have sgt johnson can play the game fine but i know 3 people plus me who have him and it screws up a lot could that be the problem? I'd trade anyones problems for mine. my xbox freezes at start and randomly a lot ever since i've played ODST but it didnt happen till after i beat the game. is it possible there is a virus attached to a certain achevement? well i'd like to try to pinpoint the problem if anyones with me. heres a list of my achevements everyone list your common achevements so we can narrow it down.
Healup, Dark Times, Tourist, Junior Detective, Boom Headshot, Trading Down, Tayari Plaza, Listener, Ewww Sticky, Uplift Reserve, Tuned In, Gumshoe, Kizingo Boulevard, ONI Alphasite, Dome Inspector, NMPH HQ, Super Sleuth, Kikowani Station, Data Hive, Coastal Highway, Campaign complete: Normal.
My xbox and game were fine until I beat Normal campaign but now i might have to buy a new system just to turn it on.