The wirble runs out of ammo with 1600 rounds left on the counter. It continues to sound like its shooting as long as you hold your finger on the trigger but bullets are not flying. Relase the trigger and squeeze again and nothing happens (with 1600 rounds left)
On the T34, position number 3 rotates at 2x the rate of the turret... ie if you turn your turret 90 degrees, position number 3 turns 180 degrees. This is a bit of a pain when trying to gv with the T34, I use that position #3 heavily when trying to get my bearings/locate a target, having to swing the view around wastes alot of time and gets ya killed.