Complete 'Core', 'Paradise Lost', 'Exodus' and 'Reckoning' on Delta difficulty

Defeat the flight deck invader

Kill 400 enemies

Perform a kill with every firearm

Complete 'Assault', 'Onslaught' and 'Awakening' on Delta difficulty

Enter the mines

Customize a weapon to use all 5 modification points

Destroy 5 helicopters

Complete 6 Secondary Objectives

Kill an enemy 200m away

Destroy all AA guns around the harbor

Complete 'Contact', 'Recovery' and 'Relic' on Delta difficulty