Modern Combat 4: Zero Hour will arrive on Windows Phone 8 from 10th April 2013 at US$6.99. This game by Gameloft shows potential to be the killer FPS game on Windows Phone 8. Check out the demo by Windows Phone Central.
I am here to show only the demo video. If you need more information, do check out Windows Phone Central’s post. BTW, this Modern Combat 4 has multiplayer mode and it is linked to your XBOX LIVE ID.