"Our time was brief, but it's clear that Halo Wars doesn't look to be a game-changing RTS that will make you sit up and think: "Damn I need to own it when it comes out". That said it is a well-polished game that will keep RTS fans happy and most likely appeal to the Halo set looking for more action.
There are some nice features in the game, it is actually easy to play on the 360 and overall the graphics are very, well, Halo.
Whether on closer inspection the levels will have enough variety and the single player modes a decent enough storyline to keep you coming back for more is yet to be seen. If those parts deliver it could take this from an average RTS game to a great one"