Here is the full list of all 25 Blacklight: Retribution achievements.
50 Melee Attempts
1 Enemy Equipment Destroyed
10 Kills
Complete the training level
1 Kill
Play 1 public match
100 Kills
1000 Kills
10 Headshot with a hardsuit
100 Headshots
10 Enemy Equipments Destroyed
1 Enemy Turret Destroyed
10 Enemy Turrets Destroyed
1 Barricade Repaired
1 Turret Repaired
10 Heals
1 Hardsuit Repaired
100 Heals
1000 Heals
1 Revive
10 Revives
100 Revives
10 Kills in a hardsuit
100 Kills in a hardsuit
1000 Kills in a Hardsuit