Gen2s and Gen3s doesn't mean they are better players, just means they've played more hours. But I agree the teams should be rebalanced after each round based off of performance. One really bad player that gets killed 11 times and only gets 1 kill himself can really hurt the team.
Generally I play this game with a group of my friends...we'll win 80-90 percent of our games. I don't want our party broken up. I want to play with them, not against them.