DO NOT TAKE ME VERY SERIOUSLY
Perhaps if we ask David nicely, he will let us port this to iOS and Android. Make it to where you use touch controls to move and play with the gun. No HUD, use any part of the screen other than the gun to move and look. A simple swipe down drops the clip and tapping the clip adds bullets. Swipe up, clip goes back in and a swipe to the right from the gun pulls back the hammer/slide. But then if we ported this over, we would have to remove a couple of the features such as the safety and automatic Glock. Unless we did add a HUD for a small button in a corner for that and it appears only for the time its needed. Maybe another HUD element for the flashlight. Toggle on, off, go away, come back. You would grab ammo and tapes and flashlights from tapping them once they are on the screen, or add an element that appears over them to tap and pick them all up.
The new features you have added would need to be disabled as most phone hardware would not support it. These features could be enabled if the game detects it is able to handle it, such as an iPad or Android tablet.