The Pillar of Autumn has the Marathon logo on it, so there’s definitely crossover between the two universes. edit: https://www.halopedia.org/List_of_Marathon_r

The Pillar of Autumn has the Marathon logo on it, so there’s definitely crossover between the two universes. edit: https://www.halopedia.org/List_of_Marathon_references_in_the_Halo_series https://www.halopedia.org/List_of_Marathon_references_in_the...