See, CAPCOM Unity stated that this is set 10 years after Raccoon City's destruction, which occurred in 1998, and Resident Evil 5 was set in 2009, so... this actually makes Resident Evil 6 a prequel to Resident Evil 5.
What the shit. Aren't there already enough? There was the Lost in Nightmares DLC story, which was set 3 years before RE5, and now there's Revelations which is set 4 years before RE5... and now we have the next numbered title that is also set before RE5. I guess even CAPCOM don't even know what the fuck to do after the fiction-suicide they created with RE5. This also looks like another opportunity to whisk in Wesker for no goddamn reason somewhere, if just for a cameo, too. Oh well, trying to understand and make sense of the timeline of RE at this point in it's lifetime is like trying to add some linearity to the Zelda timeline. It's pretty clear that CAPCOM don't have any clear canon in mind and just seemingly wing it with each sequel, which is kinda strange considering how more adamant they are supplying more timelines and chronology and shit.
Game still looks fantastic all the same, and it couldn't care if starred Chris and Leon during Junior High if it finally had them team up to kick butt.