So it happened again. I was a scout, there were a large number of enemies moving across in front of me and suddenly my guy decides he needs to get up and do some jumping jacks. I laid back down, and up he goes! Needless to say I went from my hiding place to being obvious to the enemy and quickly died. This happens a lot. Especially on the TSAR maps which are flat and have little cover my guy just decides to jump up.
I just don't understand how this game has been out for a year and still you can't reliably lay on the ground without your character randomly deciding to do some jumping jacks to ensure no enemy on the map can miss you.