Acquire 6 or more friendly Stalkers at the same time in the Campaign

Complete Chapter 1.

Powered the Beacon

Completed Special Operation 217

Destroy a Mercenary Titan with a melee execution in the Campaign

Defeated the Reapers in Ash's Simulation Dome

Entered the World Foundry

Let a tabby slime headbutt you right on the nose

Free a bound ally.

Exploit an enemy's weakness.

Stagger an enemy.

Complete all chapters on Hard difficulty.

Defeat a malboro.