6. Gun Master
Gun Master is a shameless rip-off of Call of Duty: Black Ops' GunGame mode, which in itself ripped of Counter Strike's Gun Game mode. Even then, it's still a fun enough mode to jump into and get some streaks. Or not. Depends on what server you join. Even though I have already mentioned my disliking of the mode, I do jump in from time to time to pop off a few rounds and try to skyrocket up the score boards. Unfortunately, Australian servers, my local choice, do not offer this mode much in the 32 and under player variants, everyone wants 64. So alas, I can never play it.