Kill all other players in an 8-player Deathmatch.

Kill 10 enemies with every firearm Syd can equip. (Melee kills don't count.)

Clear The Root of the Tower.

Clear Cavitas Cranii on Hard.

Complete any fortification objective without the dinosaurs getting in

Shoot an enemy with a Plasma Lancer from 50m.

Obtain the rank of Commando.

Land 100 full combo attacks. (3 consecutive hits)

Kill the Dreadnought on Hard in 2 minutes or less.

Kill 50 Scorpions

Defeat Chaos (Thanatos II) on Hard in 1 minute 30 seconds or less.

Kill 50 Raptors with a single shot each