Halo has been struggling for decades. Not dying, but certainly struggling. And one of the clear reasons for the franchise's fall off since Halo 3 is that Xbox has been losing the console war. There just aren't enough players out there on Xbox for Halo to meaningfully compete with non-exclusives like Call of Duty.

There may be more reasons than suspected for Halo moving to Unreal Engine 5, as rumours of a remake and PS5 port intensify.