I always laugh at people who complain about other players for simply using what the game provides them with. The earlier Call of Duty multiplayer suites were particularly littered with players who would whine about other players using the "Noob Tube" - that's the Grenade Launcher that allowed you to rack up obscenely easy kills from a safe distance in the first few Modern Warfare games. Was it annoying if you got blasted from across the map with one? Sure, but why wouldn't a player use these weapons if they're part of the game and easy to operate? These players need to direct their complaints towards the developers for creating what they perceive to be an unbalanced experience rather than players who are simply taking of advantage of something readily available to them. Plus, whenever I used the Noob Tube and heard people screaming at me down the voice-comms, it just made me use the gun even more frequently while laughing manically at their pleas for me to stop.