A free program for Android, by Wind Mile Studios.

Free Action Games with Advanced 3D Graphics

The first thing we need to say about this app is that you can play it on mobile devices, tablets, and even some PC systems. The gameplay is completely unblocked and you can choose the type of weapons you want to use. There are tons of different guns and weapons in the game, including machine guns, sniper rifles, assault rifles, shotguns, and even grenade launchers. You can use all of them to complete all the missions and tasks. There are also many different maps and environments to explore and fight in. This is one of the best action games with FPS gameplay.