omg u n00blets ur missing out on the best combo of all:
Plasma Pistol+SMG=death to any moving thing[charge ur plasma then fire it,itll PWN shields,then fire 2 smg bullets and u got a dead body on the ground ]
Shotgun+Energy Sword=im the king of da world....
Brute shot+energy sword=massive PWN[brute shot for the bayonet]
plasma pistol + smg is great. if you aren't up against brutes, hunters, or flood