There are 15 achievements worth a total of 250 points
I give no secrets.
The secret of 2401 lies within.
They're Everywhere!
Complete the Single player game in any difficulty.
Venture into the Citadel and learn the secrets of the S'pht.
Kill an invincible opponent with the Fusion Pistol in a Multiplayer game.
You want to join the 7th Column?
Get 20 Tozt-7 kills in a Multiplayer game.
Win a Multiplayer game.
Get 20 Rocket Launcher kills in a Multiplayer game.
Find the Assault Rifle in a Single player or Co-Op Game, it will let you kill more Pfhor.
Get seven fist kills in the game.
Kill a Juggernaut in Survival and live to tell the tale.
Outscore all the other players (at least 3) combined in a KOTH or KTMWTB game.
Win a multiplayer game with at least 4 players in every map in the Total Carnage Netmap Pack.