Yeah I've found that they really have struck a balance encouraging team work for this squad based game...
That translates into "Get used to getting team shot, and if you're running solo, you're pretty much fucked unless you're a halo-jumping, grenade-spamming, twitch-shooting elitist sweat-bag."
The fights are awesome when it's three on three though, and people are trading off and running around and ducking behind cover, etc. I will say that the healing is not balanced with the damage though, IMO. It takes soooooo long to inject a 1/4 health, yet it takes a tenth of a second to get all your shields shot off and your health dropped to 10%. I hope the buff the healing mechanics a bit. (or a lot)