starcraft on 13 June 2008
http://www.xboxic.com/news/4751
Its not specific about whether the co-op is online only or multiplayer, but either way its awesome.
Though its not written in the link, I can tell you that in Halo Wars you only have to collect 'supplies' rather than gold, wood, food in an effort to make the games less tedious to use with controllers.
Also, full-scale assaults can be organised in less than a minute.
Edit: Also, BEFORE this game became Halo Wars, it was an RTS that ensemble was already making that had nothing to do with Halo. In other words, Microsoft had so much confidence in the game Ensemble were making that they put the Halo name on it.
starcraft - Playing Games = FUN, Talking about Games = SERIOUS
