Board Thread:Questions and Answers/@comment-34904222-20180305101031/@comment-26838246-20180305212357

Well, due to the limitations of machinima, the Halo rings are seen in the background. We as the audience, however, can determine that those are non-canon. Red Vs Blue is special in that it is its own fictional universe that uses another fictional universe to tell its story, so we just have to know what is canon and what isn't based on our knowledge of the two franchises. The only exception is the clip from Season 3 where we see a Halo ring explode. That was purely for comedic purposes and I doubt that at the time the creators had given much thought to a seperate canon/universe. The mention of the Master Chief in Episode 1 would also be for purely comedic purposes. Nowadays, that stuff can be assumed to be non-canon.