So 40K players will have to use forgefathers as SM stand ins. Regular Corporation troopers are a guard equivalent, and the "Space Commandos" (or whatever they end up calling them) are an elite unit within the corporation list which are incredibly rare and only get deployed against the direst threats. I think this might be where we see humans in power armour.
I liked the design process with these guys as well: Allessio said that the corporation troopers are the "benchmark" for everything else - they have all the tactical options, but aren't great at anything. So a bit more like Earthforce from B5 than the Imperial Guard in 40K.
EDIT: I have to say I love BoW's choice of adverts: Wayland Games, Infinity ... and Lynx anti-perspirant!