Have Ammo be changed like firing modes and when you want to equip medkits add a toggle for automatically filling in slots for medkits with medkits. For example you run out of equipped medkits but if you have medkits in your inventory they will automatically be assigned to the slot. And maybe you could choose what kind of medkit you want to be chosen in a certain slot. like in slot 4 i want simple ones and in 5 i want standard ones. Same could be applied for emps. I would love something like this.