Holy crap is the alien ever an imbalanced beast. I have been playing pretty much all day since I started to feel better and I only seen an alien team lose once. That was with them having only 4 on their team, 6 on preds, and 8 on Humans, but even then they stomped the preds and came in second place. We also barely won that match as the marines. It's a combination of them being so fast its hilarious and the cheap heavy attack spam. Either one needs a good nerf. Heavy attack once only x number of seconds or decrease their speed. They can't have both. Way to powerful a combination. Most games they lead by 40+ points by the end of the round.
Nah, the only way to really balance multiplayer is remove all of the lock-on crap.