If you are flying (alone or with a dead gunner)in a attak heli,
you can't aim with the gun as pilot in "manual fire"-mode.
i think there should be a capabilty to do this.
the freelook could be a good solution (pseud TADS/PNVS system).
choose gun as weapon
press alt for freelook
OR press alt only for freelook
and a special key-combination(alt + shift) for the link gun with freelook
look at your enemies position
shoot!
I agree, even today's aircraft have this capability, for example the AH-64 Apache's 30mm chain gun can be controlled by the pilot's or gunner's helmet, and the F-35 JSF has a similar feature for controlling the missiles.
So surely helicopters in 2035 would have this ability.
I've also made a ticket about the inability to lock on targets when using manual fire as the pilot: http://feedback.arma3.com/view.php?id=9961
Mass closing ancient tickets with no activity for > 12 months; assume fixed or too trivial.
If this issue is still relevant in current dev build, please re-post.