Use every gun in the game

Defeat 20 enemies with C4

Defeat 5 enemies, each one taking damage from a handgun, long-gun, and melee

Defeat 4 enemies with the vehicle in 20 seconds

Perform 10 combo partner takedowns

Defeat 20 enemies firing from-the-hip

Defeat 10 enemies in a row, alternating gunplay and hand-to-hand

Perform 20 headshots from the rope

Make 10 enemies drop their grenades

Defeat 50 enemies from-the-hip or blind-firing

Defeat enemies with a stealth attack, melee attack, headshot, and explosives, in that order, in 15 seconds

Reach the end-boss of any level using boost only

Complete a level on Master difficulty