Kill 2 Helghast at once and take your own life using a single frag grenade

Kill 5 Helghast in 15 seconds whilst on foot and maintaining at least 85% health

Complete Salamun Bridge on any difficulty level

Complete Visari Square on any difficulty level

Complete Corinth River on any difficulty level

Complete Mission on any difficulty: Approach

Collect 75% of the journal intelligence found throughout the game.

Complete Mission on any difficulty: Keegan

Kill 10 enemies using combat opportunities.

Collect 50% of the journal intelligence found throughout the game.

Complete Mission on any difficulty: Top

Complete Mission on any difficulty: Replica