in the driving section - toggle SRV turret - standard is U
But you can shoot as well at something ahead of you targeting it from the driver's seat with mouse 2, wait for the auto-aim to get there and then mouse 1 to fire.
in the driving section - toggle SRV turret - standard is U
But you can shoot as well at something ahead of you targeting it from the driver's seat with mouse 2, wait for the auto-aim to get there and then mouse 1 to fire.