Enemies of Mobius STANDALONE

Ever want to fight the forces of Dr Robotnik as someone else not from Mobius. Maybe a Soldier from 21st Century Earth, a Doomed Space Marine, A lone Gunslinger trapped through time or maybe even you want to send your own protagonist from your own mod to join the fray and kick some Collaborator and Robot ass, And tell the good doctor that his lil invasion force is not welcome in your world/Timeline…