The SP elements will dovetail really nicely into those and both those actions will allow your Shepard to have a different ending depending on those actions. 'The Galaxy at War System takes the actions played in MP and pushes them to your SP achievements. 'They complement each other really well,' Houston said about the single and multiplayer modes.

Now, the game's producer, Jesse Houston, has revealed some more details about the upcoming role playing game, and how its cooperative mode will work.

Mass Effect 3 has been talked about quite frequently in the past week, what with an early demo appearing on Xbox Live by mistake and with story details being leaked by certain websites after playing the game.

The cooperative mode in Mass Effect 3, called Galaxy at War, won't have support for split-screen gameplay on consoles or for local area networks (LAN) on the PC, BioWare has confirmed.