AT-ST grenade launcher works only one time in two

@RogueZeroRendar 

From what I can gather, it looks like @Zerstorung689 was right. It's got something to do with the FAST RECHARGE card. It doesn't seem to work properly. If you launch the grenades, wait for it to reset, and fire again, it won't fire, just go into cooldown. You have to wait for it to cooldown, wait a few more seconds, and then fire. It will work then. Without this card, it works fine.