Well, either between 3 and 4 or 50-100+ years after 6 (presumably taking you past the time lines in the most recent books). Something not too bogged down in cannon, thus giving the writers wriggle room. Preferably single player (w/mmo option for those so inclined).
Now, I want you to remember that no bastard ever won a war by dying for his country. He won it by making the other poor, dumb bastard die for his country.---Patton
There is no room in this country for hyphenated Americanism.---Teddy Roosevelt
I never forget a face, but in your case I'll make an exception.---Groucho
And if you all get killed, I'll piss on your graves.---Shaman Urdnot
How would you like to own a little bit of my foot in your ass.---Red Foreman