Kill 3 Helghast at once using the surrounding environment

Destroy the Salamun Bridge ATAC in under 1 minute 30 seconds

Shoot off 100 Helghast helmets during battle

Kill 25 Helghast using melee attacks

Purchase the Silent Obliteration from ThiefNet

Defeat Contessa #1

Purchase the Paraglider from ThiefNet

Hack the train

Purchase the Trigger Bomb from ThiefNet

Dance with Carmelita

Purchase the Combat Dodge from ThiefNet

Collect 30 clue bottles

Defeat Dimitri