100 targets killed using either an MMG or an MGL
500 targets killed while in cover
Level up to Rank 15
Destroyed 500 objects
Perform 100 Headshots
Perform 250 Flank, Surprise and/or Tag Team kills
Perform a x10 Co-op Combo
Perform a melee kill while you're in Overkill
Level up to Rank 5
Fully customize a weapon with 6 customizable parts or more
Level up to Rank 25
200 targets killed in single Overkill (Triggered by you)
200 targets killed in double Overkill
200 targets killed in single Overkill (Triggered by your partner)
Buy All Guns
Buy All Outfits
Complete the game on Insane
Buy all Weapons, Tattoos, Masks and Outfits
You took the Aggro for 100 Flank kills
Perform 100 melee kills
You didn't go wounded once in a mission (medium, hard or insane)
Perform 10 cover to cover transition in a row
Complete a mission (excluding New Blood) with a human partner
305537
12412
217
1148
45
256
949
159
39
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