Hey there, I just talked with Yennefer in the chat, and this sounded pretty cool so I'll try to join in? I'll lurk for a while before doing anything, probably not going to do anything official until a week or so have passed, if that's alright? Anyway, I gave the basics of the concept to Yennefer and they were okay with it, so I'll check in with everyone else to see if it's cool.
So, the idea is that this Primarch landed on a fairly technologically advanced world in the midst of a war of some kind, I'm not so sure if I want it to be a civil war or one against xenos, but he was taken in by a military family and rose through the ranks as he grew up. He eventually reached the top, finally ended the war, brought peace back to the planet, and by virtue of being one of the only leader-figures of his caliber left, was elected as the president of the now-unified world.
However, steering his people back on the road to progress, he noticed a fairly major issue; He had no idea what the hell any of his scientifically minded peers were talking about or even doing, which was the vast majority. In other terms, he's a full-on military genius, leading a society that would be doing a lot better with a man of a more scientific pursuit, out of necessity and popular opinion.
His Legion (No names for either the Primarch or his Legion yet), the eighteenth, would probably focus on relatively small, but well-trained and equipped forces that focus on quick strikes, destabilizing enemy supply lines, and perhaps psychological warfare. As I said, this is just a preliminary, very basic starting concept for everything, so I'm not totally sure.
How does this all sound? Good? Bad? Too similar to anything we already have? Yennefer did note that it is sort of weird how a Primarch can't 'get' a really advanced society like this one, so if it is a bit odd I'd be willing to change that.