The controls are pretty sweet. There’s like a touchpad on the left for forward back and strafe. Just swipe up, down, left or right to look around and there is a button in the bottom right to shoot. It was pretty glitchy for me but it seemed to be smooth for a few seconds, then glitchy, then smooth. I remembered I have a flashing Christmas lights theme on my wallpaper so I tried shutting it off. Things ran MUCH better. Again, the controls are amazing. You can tap and hold the firing button for fully automatic. Also, when you run up to sand bags and other things to hide behind, your character ducks automatically. You can tap the gun in the top left corner to pause the game and it also brings up a full menu. To throw a grenade you tap on the grenade in the top right corner then aim where you want it and push the fire button.
The multitouch works great! It’s easy to control and gets easier as you get used to it. There was a few times where a fence or wall that I was standing by would get in my view. Overall, if you like FPS then this is about as good as it’s gonna get on the iPhone. Now they just need multiplayer mode via online or network!