Here is the full list of all 14 Psihanul achievements.
The game started
Live up to the gun
Live up to two pistols
Live to be an assault rifle
Survive to submachine guns
Live up to the rocket launcher
Live to minigun
Get to the top of the leaderboard
Get a combo x35
Destroy 500 enemies
Destroy 300 enemies in slow motion
Make 100 tackles
Collect 1000.000 points
Get 1000 damage while enraged