I was unable to dismantle an enemy garrison while prone due to it wanting me to deploy my gun’s bipod. Has this always been the case? I just noticed it with update 19 after they added bipods to FG42 and BAR. To be fair, I haven’t played much machine gunner leading up to this. Regardless, I had to go to crouch position to get the garrison, but almost got taken out in doing so.
I found an example clip from recent captures. Slightly misleading because a blueberry was dismantling at the same time as me. Not the exact situation explained above but you get the idea.