A full version app for Android, by Game Labs OU.

Sniper Online: World War II is a first-person shooter (FPS) game.  In the game, you will fight on the battlefield as an Army sniper and gunner, destroying the enemy in fierce combat and using military weapons such as assault rifles, machine guns, snipers, and rocket launchers.

You will control the movement of your character and aim and shoot at the enemy soldiers and targets. Moreover, you will be able to customize your character and weapons. You will have to choose the right weapon for the task at hand. 

Aside from the gameplay, you will also love this for its amazing graphics and sound effects.