In order to get the following achievements, just start a multi-player game for each of the respective modes, with a one minute time limit and play it by yourself. You will get the following achievements.

Chaos Winner
Multi-player Master
Predator Winner
Seek n Secure Winner
Steal the Sample Winner
Team Chaos Winner

Use the following trick to earn the Chaos Champion and Team Chaos Champion achievements. Create a multi-player game and set it up as Chaos (or Team Chaos). Set the round for one minute. Set auto launch for 15 seconds. Set the max number of players to 2 and private slots to 2. You will be in a continuous game by yourself. Allow the game to idle in this state to earn the achievements.