My game freezes on both campaigns -__-
in extraction point, game freezes at the loading screen for the 3rd interval

in perseus mandate the game freezes at the loading screen of the 4th interval, it both cases it also freezes the 360, thus, if i don't reboot the system, it keeps being FREEZED... anyone else has this problem?, bad disc, hardware problem? or wtf?.. it KEEPS freezing in that part, only with this game, it's... odd. i WANTED to finish the game dammit, i liked this game ffs...
DEFINITELY IS NOTHING GOTTA DO WITH MY 360 and disc unreadable.

because I bought the cd and exhange for like few times and on top of that.
I bought a few from diffrent shops.

So if I can play interval1 and 2 so it means it has nothing to do with my driver or the 360 hard/software problem right?
Can anyone tell me? Is it missing files or wad?
Btw I deleted the memory from myxbox360 means I started the game from a fresh beginning..is still occurs again!

I went to midvalley "mission world" good quality cds. But only this game has problem.
then I went to S and M shopping arcade and still has the same exact problem!
The disc is still new!