Here is the full list of all 14 Shot In The Dark achievements.
Host a server.
Play in the Light Arena map.
You got Shot In The Dark!
Knife someone for the first time.
Play in the Mark-E Jud-E's map.
Play in the Warehause map.
Play in the Club Marq map.
Play in the Office map.
Play in the Soccer Field.
Play in the Casino map.
Enter the lobby.
Get 3 kills in one match.
Get 6 kills in one match.
Get 9 kills in one match.