Play as Missile Specialist (AT)
Load AP round
Try to lock on to a vehicle or laser designated target.
Won't happen lock.
Play as Missile Specialist (AA)
Try to direct fire and guide Missile.
Won't Fire without a lock.
Play as Missile Specialist (AA), equipped with **M**ulti **P**urpose **R**ocket **L**auncher
Try to load AT or AP.
Wont happen.