Level 5 Berserker perk - Deal 3,500,000 damage with melee weapons.
Level 5 Commando perk - Kill 4,000 stalkers with the Bullpup and deal 3,500,000 damage with Bullpup.
Level 5 Field Medic perk - Heal 25,000 HP on your teammates.
Level 5 Firebug perk - Deal 3,500,000 damage with the Flamethrower.
Level 5 Sharpshooter perk - Get 5,500 headshot kills with the crossbow, handcannon, or rifle.
Level 5 Support Specialist perk - Deal 3.5m damage with shotguns and weld 250,000 door points.