The demon power-up is one that certainly could be copied from DOOM.
Play as a Spartan normally, pick up power up that transforms you into one of Covies, all with unique abilities. Brutes and Elites certainly would work for that role, and maybe Prophets on Gravity Thrones.
Now, someone just needs to figure how to make Grunts viable options... maybe a Grunt with FRG?
Play as a Spartan normally, pick up power up that transforms you into one of Covies, all with unique abilities. Brutes and Elites certainly would work for that role, and maybe Prophets on Gravity Thrones.
Now, someone just needs to figure how to make Grunts viable options... maybe a Grunt with FRG?