No, its not. I said hatchet because it is a utilitarian weapon much like the modern army knife. Hatchets are issued with special survival packs, rather than knives
I kinda think they should amp up melee damage a tiny bit and also reduce the giant knockback effect when you melee prone enemies.... That giant knockback is way more annoying to the attacker...
I say the melee just knocks people down as a ragdoll, but after 5 seconds they can get up. Melee is just a move which incapcitates another object allowing it to be properly disposed of (I.E.) a bullet to the head. So I say you run you hit them and while they're on the floor make them a Holy man.
Instead of holding both weapons at the same time you could make the right mouse button switch between them instantly and left is shoot/stab.