Just wanted to mention that Naughty Dog released a patch for the closed multiplayer beta that resets your level back to one. 

Just noticed that, its bullshit since you can't get a feel for what your team is going to be like or what the other team will be like but I guess it doesn't change anything outside of that. All because they failed to include anything that will be gained from leveling so there really is no point in having it to begin with. But I'm liking the patch, they fixed the grenades a bit which is nice. They should maybe mix the boosters up a bit and give us a few unlockables in the next update and if not in the Beta at least in the final build I'd like to be able to select a default weapon. Its kind of boring just starting out with the AK every time and having to go find the FAL or M4.

Really balancing? There was nothing to balance though, the level didn't do anything but show how much you played the Beta.

 Yup, it's because of the update, there is a brief interview about it here.