AI not moving, no zombies, can't finish chapter. xbox360

[writerstix]

I am having a problem that I hope someone can help me with. A little while ago some of the colors in the game (L4D2) started looking funny. For example, fences are multicolored, escape vehicles are bright solid colors, etc. While a bit annoying, it did not effect gameplay, so I ignored it.

More recently, I was playing two-player co-op on Dark Carnival. As the finale chapter loaded I was inside the furniture that blocks the door. I couldn't move, but after a few seconds the game re-spawned me a few feet away and I could move. Since then, the AI do not move when we load a co-op game. They stay in the safe house and do nothing. Even killing them off, running to the other safe house, and closing the door doesn't help. The door just closes and does nothing as if they were alive and waiting to come into the safe room. We are unable to advance through the game. Also, no zombies or SI are spawned either.

Online play seems to work fine, but not off-line. I have tried clearing my xbox 360 cache and re-downloading the latest l4d2 update to see if that would fix it. It didn't. I have tried my other xbox 360 games and they do not seem to have any problems. The xbox has been turned completely off and rebooted as well with similar results. :-(

Does anyone know what is going on? Or how I might fix this? Thanks
-Jason (Writerstix)

[AbrasiveGalaxy]

Have u tried just cleaning the disc?

[writerstix]

yes... no luck there either.

[Xrenzco]

maybe its the disk. It might be too old.
One question though.
Did you play l4d2 every time or play other games than l4d2?
cause i may have a solution.

[SinistrBetrayal]

wel it could be that last update did it.

[AbrasiveGalaxy]

wel it could be that last update did it.

It could have been

[Sgt. Rock]

the 3rd person ar-tank thing might be supposed to happen.

i remember reading somewhere that on the parish finale if i tank hits you with a car, it will do about as much damage as a normal punch and send you into third person, because there are so many cars he can hit at you and not alot of space to move in.

[writerstix]

Someone had suggested to me to install the game on my hard drive and try to play it from there. When I tried to install it, it said the disc was scratched. Looking at the bottom of the disc only revealed a very fait circular "scratch" (if you could even call it that). So my next plan is to borrow a friend's copy, install it on my hard drive, and try to run it from there. My disc will still play the game, so I am told this should work. I will keep you guys posted though. Thanks.

[Sgt. Rock]

my disc got scratched to. i could play it and all, but after maybe 10 - 15 minutes the textures just messed up. i had pink pipebombs, and square fires. Installing it to my drive fixed it though, so it should work