Killed 6 enemies with a single attack

Fought 4 W.E.N.D.I.G.0 prototypes at the same time and defeated them at Alkali lake.

Killed 30 enemies using objects in the environment

You feel a cold as you examine the sword and skeleton. A rustle of wind in the trees faintly echoes the name Arthas

Killed 10 enemies using objects in the environment

Killed 10 enemies by throwing them off high areas

Complete SNAFU.

Smash an enemy's face into a wall. (Single Player)

Killed 1 enemy with a reflected projectile

Lunged to 100 enemies

Impaled Victor Creed outside the Bar

Killed 100 enemies

Lunged to 25 enemies