Velvet Assassin
45 Achievements
1,000
15-20h
Xbox 360
Rogue
You have killed 50 enemies silently during a campaign
10
How to unlock the Rogue achievement in Velvet Assassin - Definitive Guide
To kill enemies silently, sneak up behind them and push A. You should get this before Lv 4 if you kill most of your enemies like that.
See Assassin