Ok, so i've decided I want to run a long-term marine campaign. I'd like to start with the characters as children on Terra during the Age of Strife. They will be recruited and turned into some of the first Astartes, and take part in the unification of Terra wearing Mk I Thunder Armour.
After that, they'll fight on Luna, then travel to Mars, and the campaign will finish with the compliance of the Jovian forges and the Saturnine shipyards.
If this goes well, i'll forward the game 50 years, so that the players have to deal with the discovery of the Primarchs and the influx of non-terran marines into their Legion.
Now, I know this will require some work to shoehorn it into the rules framework that Deathwatch provide; i'm not concerned about that. What I AM worried about is the lack of detail for Pre-Unification Terra, and not even a vague idea of the timeline or major players involved. Can anyone help with a few suggestions, please? I'd be very grateful for any help that is offered. Even fan conjecture is absolutely fine!