It's true: the guy with the knife always has far more power than he should. And a handgun is just as effective as a well-placed sniper rifle, when it needs to be. And then, of course, there are the difficulties posed by that incredibly complex piece of equipment, the ladder.
You don't have to be a regular Call of Duty: Modern Warfare player to appreciate how sadly familiar some of the more ridiculous truths of gaming can be. Ladders, man. They have caused me so much more trouble over the years than that Z axis could ever be worth.