When triggered the only working vehicle is the Pelican, which flies in, pops flares and flies away without shooting anything

Every other vehicle (Hornet, Falcon, Longsword, etc.) doesn't even spawn. I just get a prompt saying something along the lines of;
"[BIS_fnc_CASModule] No weapon of type MachineGun wound on (Name of CAS vehicle)

Except the Longsword, for that I get nothing. It just doesn't spawn at all.

Thanks for any help, I'm just trying to figure this out so I can make some missons