Last night I played Omaha beach multiplayer on the German team, and while attempting to jump on top of some pallets I got stuck between them. Americans appeared, but no matter how much they shot at me I took no damage, although the blood decal was showing. I was able to shoot from this position, but not get hit myself. I managed to get intentionally stuck again in singleplayer.
Here's an image. It's just south-east of Vierville:
