ok, I'm in the early beta as well, and I actually have some pretty big complaints about it so far. The biggest problem I have with it is the balancing. Shotguns are freaking insanely overpowered. So much so that most people don't even bother using any different weapons. I have guys downing me from like 20 feat away with a shotgun. They need to tone those suckers down.
And then there is the sawed off. This should not be a starting weapon. Sure you have to get in close, but getting close is not hard on gears. There is cover EVERYWHERE. This needs to a map pick up.
I like the addition of the retro lancer, kind of fun to play with, but difficult to master. Hammerburst also got a much needed increase in power. Overall, I think the lancers are just about right.
The pistols have been nerfed for some reason. There is absolutely no reason to ever pull one out now. Stupid waste of weapon space. They need to be beefed up.
Then as far as map pick ups, the digger gun is awesome, works awesome. The oneshot is a kind of lame, you have to be pretty much on the opposite end of the map to even be able to use it effectively. Boom, bow, and sniper work the same. The flame thrower is worthless, but it was worthless in 2 as well. That is one that I would probably beef up.
The maps are pretty cool, graphics about the same as 2. If they fix some of the balancing issues then this could easily be the best multiplayer experience out there. As it is though, it is pretty lame. Just a mad rush to wherever with shotguns blowing the crap out of people. That is the only tactic people use, get close, shotgun. Because it so OVERPOWERED!