you can also probably make it so you can throw objects to distract npc's or even players so you can catch them off guard
and add a feature so if you for example make a circle of holes around a area if its thin enough it could break that shape out of the wall
and or add a button that lets you tactically hold your flashlight on the side of your gun like cops sometimes do this isn't really needed but it adds a nice level of detail btw if you make a campaign mode add an option for gun jamming just incase someone doesn't want it in there playthrough of the game and one of the most important things in my opinion is adding a sandbox mode for fun ;) have a good day byeeee