Play the tutorial, if you even have the game cuz the tutorial is the first level of the game.
In halo wars no you can not play as the rebel army.
find halo wars and click it
Play halo wars :D
You can't. The Mythic Maps our only playable on Halo 3, not Halo Wars.
Yes, Halo Wars is a Xbox Live game, therefore you can play online against other players.
you dont ever play as a scarab in Halo 3...you play as a scarab in Halo wars.
You do NOT need Xbox live to play Halo Wars. Xbox live is only used if you want to play with other people and to update the game.
Play as Prof. Anders.
it depends on what you like, Halo 3 is a first person shooter while Halo Wars is a Real Time Strategy (like Age of Empires or Warcarft) personally i think Halo 3 is better, the only reason i play Halo Wars is to see another view of the Halo universe.
Yes, in Halo Wars you will be able to play as the Covenant. I dont know, however, if you will be able to play a story mode as the Covenant, but I know that you will be able to in Free Play and Xbox Live.
You build a factory
no