Oh man, I had 2 and I played it nonstop until it got to the point I could slaughter an army using any foot soldier from the Clone/Empire/Rebel armies. Never liked the Droids :s Anyways, the weapon upgrades are awesome, I find it's super-easy to get said upgrades if you play as a Marine in any space battle, then land in the docks of the enemy flagship (spawn point), get out and kill all the docked soldiers, and start blowing the crap out of the controls.