Hate the commando, love dual mags, noob tubes in Black Ops are garbage. Lol. I love all the perks you just mentioned, im just now getting hacker to pro status, I usually play SnD so it takes a while to get my perks pro. my setup of choice is:

Ak-47 w: Silencer (or dual mags, sometimes both) with dual wield pythons
Perks: Scavenger Pro, Sleight of Hand Pro, and Ninja Pro

or

L96 with the adjustable scope, dual wield pythons
Perks: Ghost Pro, Scout Pro, and Hacker Pro