Like Knuckle said, every faction will swarm people. I second that.
Some factions only swarm. Some spawn on enemy when half of their teamates are ready so they don't miss action. Those kinds of factions are the ones I respect. They play for fun and not for win. Alot of people will say that's what their faction is. However, they are wrong.
UV has the chance to be a good faction, I can say that much. But the current leader of it is really ruining it. Napalm.
For people from UV reading this, just wanna say a few words:
Winning is fun. But the real fun comes from "playing " the game every second you can squeeze out of it, not simply waiting on worldmap for right moment. I'd recomend a few factions that people from UV can play with and see where the real fun in FOnline TC's and PvP can come from. Sadly they are no longer play FOnline. Almost no good faction is playing fonline anymore.