I used this exact game mode, setup and strategy 1
Primary Weapon - Assault Shield (Obv.)
Secondary Weapon - None
Perk 1 - Lightweight/Flak Jacket
Perk 2 - Scavenger
Perk 3 - Tactical Mask
Tactical - Shock Charge x2
Lethal - Combat Axe
Wild Card - Perk Greed 1
Thats 9/10 so if you really want to, Carry around a FHJ Launcher to destroy the UAV/Counter UAV's that pop out
Game Mode - Hardcore Kill Confirmed
Score Streaks - UAV, Counter-UAV, Guardian
Use the Shock Charges to stun them and its a 1 bash kill
Hope this helps
Oh or forget perk 1 greed and use 2, if so then:
Wildcard: Perk 2 Greed
Perk 2: Scavenger/Fast Hands