Red team’s side on the left of the map before the mounted turret is a rock you can shoot through. I’ve seen it happen multiple times. The most blatant was a Binary Rifle were the gun’s muzzle was inside the rock, leaving the laser sight also inside the rock. They were still able to fire and kill people while blocking all incoming fire from the front.
Thanks for letting us know about this. Do you have a film in your File Share from that game, by chance?
I most certainly do. Under the name Ragcheat