Kill 50 enemies using only the Attack Command. (campaign only)

Kill 10 enemies while they use zip lines or are rappelling. (campaign only)

Kill 150 enemies with any heavy weapon. (campaign only)

Live and let live.

Complete game on "Walk on the Beach" difficulty.

The end of the line.

Kill 250 enemies with headshots. (campaign only)

Hit 10 enemies with your melee attack. (campaign only)

Stun an enemy by dumping sand on their head. (campaign only)

Kill 50 enemies with any sniper rifle. (campaign only)

Kick an enemy by vaulting over a cover. (campaign only)

Sprint into cover 10 times while under fire. (campaign only)