Get a Specialist-based medal that requires 3 or more rapid kills while using any Specialist Weapon.

Exclude a song from the Nonstop Play playlist

In Campaign, kill 10 enemies in under 3 seconds.

Complete the campaign on any difficulty.

Complete "Throttle."

Complete "Collapse."

Kill an enemy by throwing a car door at them.

Complete "Sentinel."

Spend 10 Exo upgrade points.

Complete "Aftermath."

Kill 10 enemies with the Mobile Turret missiles in "Fission."

Complete "Atlas."