I noticed something weird yesterday, playing the mission "Quality of Mercy". Fast forward the video to 24:47 or thereabouts if the exact link doesn't work:
https://youtu.be/zXNIZ8olc8I?t=24m47s
Namely, there should be a Reaping trailer in the middle of the yard. On the first try, it simply wasn't there, and the guys with rocket launchers got stuck somewhere as well (notice that they don't climb the ladder to the right side of the bunker as I approach). On later attempts, everything worked more or less correctly.
Has anyone else had it happen?