For the happiest end of the game you need to find these MO Disks and place them at the Readers which you will find in the game later, Rescue your partner, Jill if you are playing with Chris and Chris if you are playing with Jill.
Resident Evil HD Remaster
This game is titled Resident Evil HD Remaster in North America and BioHazard HD Remaster in Japan. This page covers unlockables and secrets in the Resident Evil remake. Modes and guns return from the 2002 REmake along with updated costumes, including Chris and Jill’s Resident Evil 5 outfits.