Kill a Juggernaut in Special Ops.

Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.

Beat Solomon, flawlessly, in The Great Destroyer

Took down the jet in one attempt in Rock And A Hard Place

Campaign: finish Force Multiplier

Campaign: finish No One Gets Left Behind

Campaign: find 15 collectable weapons

Campaign: 50 kills with sniper rifles

Campaign: finish Heavy Metal

Campaign: finish Snowblind

Campaign: finish Crack the Sky

Campaign: finish Upriver

Campaign: finish Heart of Darkness