Mustang and Sally aren't realistic or even plausible. Neither are zombies so your argument of realism and plausibility is invalid. Zombies is a game, we don't need realism, we need a balanced game.
I also played WaW Zombies and I still don't see your point, the LMGs in WaW and BO1 both stopped being effective after about round 20/30. If you can't use an LMG effectively until about round 20/30 on BO1, that is your problem, not 3arc's.
err, the SMGs kinda balanced that out. And even those SMGs were quite good too. Besides, LMGs have bigger bullets with higher velocities; the laws of physics which we cannot change dictates that they have more momentum and more kinetic energy than other rounds fired by ARs etc, to they should cause more damage. Zombies starts to lose plausiblilty otherwise. What next, handguns more powerful than Sniper Rifles? (oh wait, we're nearly there due to the weak snipers in BO, and the Python. On world at war, the PTRS was the most powerful weapon in game after the Wunderwaffe-DG2)
Errr, i could actually use the LMGs effectively on World at War until round 45 (with it pack a punched), then i had to get double tap. The LMGs on BO when pack a punched can't really effectively kill zombies after round 25. even with double tap. And the pistol pack a punched, well thats just turning it into a wonder weapon effectively when PaPing it. Remember, PaP isn't real, but in a zombie universe, its plausble. Weakening LMGs is not however.
Screw physics man, have you played moon? Or call of the dead? Or ascension? Lunar landers, Flippy Pad things, bouncy space pad things, GERSCH DEVICES!?!?!?!?!
3arch doesn't care about realnessnesssssss in Zombies, cuz like ZombieSlayaJay said, Zombies don't exist
dude, you knowledge of physics must actually be pretty poor, they actually (usually) stay in the laws of physics. Moon, fits perfectly with physics, pressurized rooms for oxygen, gravity a 1/6 of earths. Ascension, yes, if a space agency really wanted to make little lunar lander platforms, they could, they don't cause they aren't much use. Gersch devices fit within black hole theory, the only hazy thing is that they wouldn't have enough mass to sustain a balck hole for too long. we can make black holes in the LHC.