Hey, just figured I'd put this post out there for people to list off their favorite regiment of the imperial guard, be it cadians or krieg or your own flavour let us know who they are, what they're about, why you like them and why they would make a great force to roleplay as.
I will of course go first, I don't know many of the imperial guard outfits but after reading Helsreach I took to really liking the Steel Legion. These are the standing forces of the planet armageddon and surrounding space. Living on one of the most heavily contested worlds in the imperium you know your planet will be wracked by terrible war and maybe even destroyed some day, but you can only hope the emperor will allow you to live out your life without seeing it. The steel legion wear heavy greatcloaks and rebreathers to protect them from the hostile forgeworld environment which leads to a rather faceless force for the most part but is also increadibly stylish. I think they would make a great group to RP as because they have tie ins to just about any enymy you could throw against them, they're almost always on the defensive but that always includes the option for quick raids to take out important enemy positions, even on ships or other worlds, and with the constant invasions you can easily create a scaling conflifct for your group to take part in. Starting out as little scouting missions and fel out attacks that need to be repelled and ending up as a full blown apocyliptic war.
What do all you think?