Weapons you wished you had in a game

[viper]

Wasn't there a back firing machine gun in one of the AC games? I can't remember which. I really thought when I saw that big plasma gun, that that would be a part award at the completion of the game. I was disappointed when it didn't happen. However it would have been hard to do because all other arm weapons require only one hand to operate. But in a future AC game, they should have larger weapons like this. But on the other hand, how much more firepower do you need than a moonlight laser blade, Kawasaw laser rifle, plasma back weapon, and back laser cannon?