Ok that guy in the boat video sucks.... I got burst fire cannon and it demolishes infantry because you can spray it as fast as you can pull the trigger. dunno what he is talking about because this is insanely OP. I went on a 15 kill streak 1 attack boat, 2 old school boats, a little bird, and a bunch of infantry laid to waste. The Zuni Rockets are where its at too... the burst cannon wrecks any chopper better than an AA gun, but the Zuni Rockets clean up any infantry that was able to duck for cover from your barrage. I just got active protection counter measures... so I have all attack boat unlocks within the first week of having the game.