If you're just flying around and shooting planetmen for giggles, more power to you. But as far as assaulting or defending bases go, light assault really has no function outside of killing lone sundies. Heavy is better at taking objectives and pushing the frontlines. Engineer provides sustain with ammo / max repairs. Medic provides sustain with revives / heals. Infiltrator can use enemy terminals to pop extra sundies, and is an easier and more effective flanker than LA could ever hope to be. The only thing LA does better than other classes is bombing sundies. This is a problem in and of itself - in bigger fights, taking out a defended sundie won't happen without your team pushing in on it (in which case it's dead anyway). So LA's one saving grace is being able to kill undefended sundies, aka killing small fights and making sure the game remains unplayable at low pop hours. Am I missing something? You don't ever seem to see LA's in competitive or organized play.