I have no idea what the average gamer's demographic is, but I'm pretty much that. Gaming for 20 years, modding for 6, I have a bad habit of jumping into bed with a game, modding the hell out of it then moving onto the next game. Hopefully I'll find my perfect partner. Currently playing (and modding) Dawn of War, Skyrim, Portal 2, Oblivion, Company of Heroes, Doom 3, several iOS games and Solitaire.
Just a show and tell of how placing all the linear campaigns from DOW and Winter Assault into one is possible - there are however limitations but not as many as you think.
Looks awesome :D