The Winter's Howl is a Wonder Weapon introduced in Call of Duty: Black Ops and is available in Five and the remastered version of Verruckt. It fires a blizzard that causes ice-based effects on the zombies. When a zombie is hit once by the Winter's Howl, it emits an icy steam and slows to walking speed. This gun also appears in the Call of Duty: Black Ops version of Verruckt, available from the box. 2  In Five, using the Winter's Howl against the Pentagon Thief can slow him down and even kill him.