We wanted to make a Master Chief/Doom Slayer crossover episode, and I spent a whole weekend crafting this impassioned letter of my childhood. And it's exactly what Tim said; they were like, "Nah." ...

Obviously, the prospect of Doom Slayer and Master Chief working together in an episode of Secret Level sounds pretty amazing, but it’s easy to see why Microsoft might have declined the offer.

Soon after, talk of a crossover between Doom and Halo began to take place. The deal was recently made final to the delight of Xbox fans as 20 titles from Bethesda made their way onto the Game Pass.