In part 2 of the mission, my game glitched and all of the "rubble" that has people beneath it, I couldn't break open. Has anyone else experienced this problem?

I checked with the goggles and whatnot, I'ma hardcore veteran, played through all the missions at least once, some many more then that. Never had this problem. Not sure if it was just how it loaded on my system (360), or if maybe it's a server-wide glitch?