RELATED: 10 Games To Remake After Resident Evil 3. This upgrade helps players with their aim and ensures that they can take down zombies and other enemies easily before the zombie can take a bite out of them. It can be found in a safe on a shelf around the Donut Shop area. The combination is 9 left, 3 right, 7 left. 1. Freeze Rounds. 2. Profit. Freeze Rounds are mid or late game options depending on your luck in the RPD. (and quite expensive because you need CC powder or normal grenades plus C) You can make 10 freeze rounds as soon as you pick up the lockpick, of course you have to get the grenade launcher early, yeah. #4. 2LvDun.