[gotwarzone]

I was wondering if this is possible?

Create a cannon object (might be a customized heat-seeker rocket or minigun) when player press F key (or ALT key). He will attached to that object and cannot be moved (Only the cursor or mouse will work to target the enemy) just like a anti-aircraft.

EDIT: I know there is an anti-aircraft but it's a missile. and I was referring to cannon that explodes in the air.