Hi.i just completed 34% of COD MW3 but when i play the game after few minutes it says Reliable Command Buffer Overflow Pleaser help.
"The solution is not to go along the street but jump inside the bulding with broken windows on the right. There will be several enemies there, you will kill them, exit the building on the other side and the checkpoint will save. Going along the street in the open causes this glitch."
Quoted from an older post.