Did anyone else have any issues with clipping during the bus mission, or any part of the game for that matter? I found out that it would be way easier to just get off the bus every time an enemy would would than trying to shoot them from a top the bus but right around the time that I got to bridge the entire game's collision detection seemed to crash and I was falling through the ground and jumping through the bus. Luckily it managed to correct itself but not for long since the game proceeded to freeze as soon I got to the top of the hospital. Over all this game is absolutely fantastic and I was just wondering if anyone else ran into similar issues while they were. On a side note this is officially the last used game I will ever buy; I have had way too many games lockup on me since gamestop sold me a faulty disc.

It's not just you. 
I've gotten stuck on the inside of buildings while climbing, fallen through rooftops into an endless void, and gotten stuck inside of the buses as well. 

It's been a while since I played this game admittedly but I can't remember any major issues outside of occasional slow down.

" It's been a while since I played this game admittedly but I can't remember any major issues outside of occasional slow down. "