Take Launch Control Unit
Hit R -> Reload Animation starts
Player doesn't move: Attaches ammo to LCU and shoulders it. Weapon ready.
Player moves while animation plays: Abort animation. LCU back to inventory, Ammo (Launch Tube) gets DROPPED wherever he is standing.
AI will abandon Ammo when fired upon while reloading, and then try to get back their ammo for 5 - 10 minutes, then abandon the ammo for good.