Here is the full list of all 60 TOXIKK achievements.
Rank 08/16
Mission 12
All contracts completed
Mission 11
Rank 07/16
Mission 10
Mission 09
Mission 08
Mission 07
Rank 06/16
Mission 06
100 Kills
Mission 05
-
Mission 04
Rank 05/16
50 Kills
Mission 03
Mission 02
Rank 04/16
FIRST IMPACT
Complete without using a vehicle
Mission 01
Rank 03/16
Rank 02/16
Rank 01/16
Rank 09/16
Rank 10/16
Rank 11/16
Rank 12/16
Rank 13/16
Rank 14/16
Rank 15/16
Rank 16/16
500 Kills
1000 Kills
5000 Kills
10000 Kills
20000