GMS/Air and Aircraft Action/Aircraft Overwatch

http://fox.nstn.ca/~kaladorn/Gaming/AntiAircraft.htm

I've used something similar to this several times when I've run events,
including one interesting event where we watched a number of GMS rounds
bounce off a heavily armoured VTOL (aliens gunship!) which was busy
SLAMming some LLAR troops. It has been reasonably successful. Your
dedicated GMS/P-Air unit (probably a team of two) sit on Aircraft
Overwatch and fire whenever they can at airborne targets (mind you, this
marks them as a good spot for arty or as a target for the attack VTOLs).

Tom.