GHOST 1.0
119 Achievements
EA Play
Treason
Kill 100 enemies in a single game using controlled robots.
How to unlock the Treason achievement in GHOST 1.0 - Definitive Guide
The two best ways to unlock this achievement are the following:
Method 1:
Method 2
Method 1:
Method 2
Even though the description says this must be done in a single game, it appears to be cumulative as long as you load up the same save slot. I earned it only part of the way into a New Game+ play through.