Powder combinations: A: Gun bullets B: Shotgun cartridges ABC: Grenades AC: Firegrenades BC: Acid grenades CC: Ice grenades CCC: Bullets magnum. To get it in the hospital, go to the room next to this room. Look for a dead body in the corner to find one of the following combinations: 513, 101, 498, or 517. M4A1 automatic assault rifle with infinite ammunition.
In Hard mode, every time you defeat Nemesis the monster will drop a special box, each containing a special object or part of it.
You can make more powerful bullets for the gun and shotgun and this is done with the reload tool by making normal bullets more than eight times.
