I don't know if this has been posted before, but I'm sure not everyone has seen it yet.
As I understand it, this was produced by Capcom 20 years ago and used to promote the original RE1. Not everything they say is true in the actual game, but it provides some interesting background info. The video is in Japanese, but English subtitles are available. Also, you can skip the first five minutes, they're just the intro and a few scenes from the game.
"Rebecca Chambers is in charge of hygiene in the team."
That one really made me laugh! But it certainly explains why at the end of the mission, Chris still looks like he's about to go on a date, whereas in RE6 he gets totally dirty and sweaty. It seems that the person who was in charge of hygiene in the RE6 team was killed too early...