Even Halo jumped in on the crossovers : r/Doom

Who would win, Atriox (Halo) vs Doomguy (Doom)? - Quora

Now that Microsoft owns Bethesda, I would love to see Doom Guy armor in Halo Infinite! : r/halo

What if there was a doom eternal and halo infinite crossover : r/Doom

Another DOOM + HALO Crossover Concept (HELL and HOPE) : r/halo

Bring on the crossovers : r/halo

Who would win: Doom Slayer with his upgrades from Doom Eternal or Master Chief with his new suit from Halo Infinite? - Quora

B R O T H E R S : r/halo

Who else waiting for doom slayer mjolnir armor to arrive in halo infinite?

Doom Eternal - Wikipedia