I've had similar issues, one recent one: A marder refused to fire on the sherman less than 50m away. I kept moving him back and forth and he just kept on turning slowly to the right, I've got no idea what he was trying to achieve but it got everyone killed.
This went on for about a minute, perhaps more. He had a clear LOS the entire time but continually rotated on the spot to the right (no enemy contacts there). I moved him closer and closer and stopped probably 5 times without luck, eventually he stopped and turned and was taken out.
LJFHutch got a reaction from Bulletpoint in Indecisive tank gunner
