First-person shooters just don’t work that well on mobile devices. It’s too hard to replicate the complicated controls of a PC or console experience with a touchscreen, at least without making a ton of compromises.
Most mobile shooters try to copy the twin-stick movement of games like Call of Duty and Halo with virtual sliding pads on the bottom corners of the screen, but this solution lacks precision. And then what do you do about all those other inputs? How do you shoot, crouch, throw a grenade, reload, switch weapons, and so on?
GamesBeat