The funny thing is, I rarely ever have a good game with KB/M on the Console in this game. People may think it's god mode but there's a fair few limitation, some problems and the sheer fact that luck, positioning and movement is 90% of a kill, the rest is down to the aim which is pointless on these tiny maps as random hip spray is just as effective as an aimed shot ...
So oddly enough, I have the exact same K/D ratio in this game as I did in all the previous Call of Duty games where I used a controller.
MAYBE if we're talking native PC input, without a turn limitation, mouse acceleration, 1:1 input movement and a proper variable sensitivity, I could see an advantage but the Xim Edge setup as it stands is purely a choice of controller rather than an advantage, because it's not perfect - Far from it.
People just have their up the ass thinking this is god mode and like the PC counterpart, except this is one of the few FPS games where aim is the last factor that counts and the setup is NOT 1:1 with the PC.