Thread:GekkoGTA/@comment-1672596-20190325123552

Metal Gear Solid 4 had flashback images to Portable Ops in EVA and Liquid Ocelot's flashbacks, not to mention EVA indirectly alludes to Gene's revelation to Big Boss about The Boss being set up from the start instead of stating the debriefing she gave to him in Snake Eater, and even Peace Walker had a reference to San Hieronymo (and please don't give me "it was a fourth wall break", because Kojima didn't do that with Fortress Fanatic in Metal Gear 2 or, heck, even Metal Gear Solid, nor did he even bother to do that with the NES Metal Gear, which was a game he outright hated), meaning they definitely happened in canon, even if they aren't Saga games. Think of it along the lines of Resident Evil 3: Nemesis and Resident Evil: Code Veronica's status as both being the "third" game and how Nemesis was more of a spinoff, yet was still counted as canon. 