Okay here's how to solve that issue. When your as a solder in first person view and you get into your tank the screen will split in two. So before you get in to a tank hit the camera button back to 3rd person view then get in your tank. Problem solved.
The following user(s) said Thank You: [*M]VonHuLK, gonner
YES thats what happened and earlyer today i noticed it happens when you enter the tank in first person wiew(or gunning what ever ) . THOUGH ITS hard to manuever