I got stuck in the semper fi or die level like alot of people did but i found a way around it.

what i found was when you get to the chopper and you get the mission to clear the area when you finish killing what you can behind the chopper theres a road follow it around and you should see a dead guy and a dog tag in front of a portable if you look to the left you will see a sewer tunnel if you enter that tunnel the level will complete.

Enjoy
-EZ

EDIT: by bug i mean where it gets stuck at clearing the area and it seems like ceph are in the walls and you cant kill them.

bump because of dumbass spammers.

whoa whoa wait... THAT was the bug? I didn't know there was supposed to be a chopper! I figured things went to **** and I was hiking it on my own and went in that pipe in the first place! NO WONDER I DIDNT BELIEVE YOU GUYS ABOUT A GAME ENDING BUG!!!!