Kill 15 enemies using C4.
Kill 3 enemies by shooting C4.
kill 20 enemies by shooting c4
Kill three enemies by shooting C4. Also unlocks "Counter-C4 1" Challenge.
By killing an enemy with C4 wile in Last Stand.
Nope. Scavenger isnt the same as Mw2.
Equip it and press R2. For singleplayer, press L1.
Reach Prestige 1 and Level 69.
Get stabbed by someone who has that title set as his active callsign.
Challenge: "Counter-C4: I" - Kill 3 enemies by shooting C4.
you have to get 250 kills with melee
No
Get to ninth prestige