Stealth Sniper 2

Stealth Sniper 2
Your mission: to eliminate criminals. Your weapon: a sniper rifle. Be careful not to alert your targets! If they become too alert or manage to get away, you will fail the mission.  
Become one of the elite snipers of the country and eliminate all targets quickly and quietly. Upgrade your gun and shoot down the terrorists from miles and away in Stealth Sniper 2! Hide, snipe, and avoid being detected! Shoot down red barrels to eliminate multiple targets at once! Stealth Sniper 2 is a continuation of the first Stealth Sniper game. Stealth Sniper 2 features better graphics, more optimized game play, and more challenging levels.
Try to snipe out all targets while avoiding detection. Hide and stealthy kill your targets one by one before your cover is blown. Eliminate those that sees you before they reach for the alarm! Use the focus mode to initiate a slow motion and make your moving target easier to shoot. Buy a new sniper rifle to get the job done quicker and cleaner. Resource

Aim: Mouse
Enter Scope Mode / Shoot: Left Mouse Button
Leave Scope Mode: Right Mouse Button
Reload:  R 
Toggle Zoom level:  E 
Focus Mode: Space