i think this is really generalizing the playstyle of those of who play ALlies. There are a lot of good players and a lot of bad ones. Good players will be aggressive and try to force the enemy back. Bad Allied players usually camp and lack aggressive play.
However this doesn't justify that 3v3+ is balanced. These larger game modes are still horribly imbalanced towards Axis. Yes it is possible to win as Allies if you are super-aggressive early. However, it is not fair for both sides. Losing early beacause the other team has a better early game is not fun. Conversely, losing the late game because the other team has a better late game is not fun either.
