are you talking about the online? i just cant bring myself to pay for a game and then pay for multiplayer. i dont know why. its a hang up of mine. but i think thats a MMORPG.
if you are talking about the RTS warhammer 40K i have
dawn of war
winter assault
dark crusade
but i havent really played too much of them. a little bit of dark crusade. it didnt grab me like sins did. reminds me of C&C, which was one of the first RTS games i ever played, if not the first.