# Pirin :
For the M1A2 Tusk as commander:
LeftCtrl+F till you say SABOT in vehicle chat to tell the gunner to switch to SABOT rounds.
Right Click your target to have the gunner select the target and slew the gun onto the target.
LeftCtrl+Primary Mouse Button to command the gunner to fire.
For the Jackal it's the same, LeftCtrl+Primary Mouse to toggle fire/cease fire.
That was it, left ctrl+primary mouse button (didn't think of that). In [Operation Flashpoint|Cold War Crises] it's left ctrl only, AFAIR and then you just assigned the targets.
If you are as a driver in the M1A2 (has no horn), the gunner fires the cannon on primary mouse button only. For the commander the primary mouse is the MG and ctrl+mouse for the gunner. And as the gunner it's the primary mouse button.