Ok, so Commando gives you a longer lunge when knifing. I wasn’t sure just how far it was until I read this post and saw this video and the other one David linked to. Amazing.
Should it be removed? Hell no. Equip yourself with a shotgun and if you’re in close quarters use that instead of your primary weapon. Either that or don’t stay in the one corner.
Oh, if you’re interested in knifing, check out ONLYUSEmeBLADE.