Observed a player replacing a helmet while firing.

I just lost a gun fire to a player and noticed something odd happen with his helmet. First during our fight, the helmet switched. He was popping out to the left and right side of a rock hoping to hit me when i popped out from behind my tree. There was no delay where he stopped behind the rock so I tried to time a shot with the sniper rifle. On the attempted shot he popped out and his helmet had changed from the motorcycle to the patriot's pride helmet. He killed me but another car drove up and engaged him. The player in the car shot and broke his helmet and during the gunfire a new helmet magically appeared on the guys head.