Kill all 4 tanks on the overpass with the Javelin missile in 'The Bog'.

Save Pvt. Roycewicz on the stairs.

Complete 'Blackout' on Veteran difficulty.

Infiltrate a cargo ship.

Complete 'F.N.G.'.

Upgrade every weapon to maximum level.

Complete the game in Challenge Mode.

Upgrade one weapon to maximum level.

Reach the maximum bolt multiplier in Challenge Mode.

Use the Groovitron on every type of enemy.

Acquire every weapon in the game.

Crush 5 gadgebots in the crusher on Quartu.

Complete the Fitness Course on Kerwan in under 70 seconds.