4. What we now know - Gears of War 2 will feature an important female character called Maria.

Early in the teaser trailer, we hear Marcus' best mate, Dominic Santiago, or Dom as we all lovingly know him, cry out to Marcus: "If something happens to me, promise me you'll look for Maria." Big new character confirmation right there. Maria will be only the third female character we know of in the Gears of War universe, following Lieutenant Anya Stroud (the one who feeds Intel to Marcus throughout the first game), and the Locust Queen. The more women the merrier we say - Gears has always been a bit bloke heavy.

3. What we still don't know - Who is Maria?
We've already heard loads of rumours about who Maria could be, from Dom's wife or girlfriend to his sister. Could Maria be a romantic interest for Marcus even? We've also heard suggestions that Dom will die at some point in Gears of War 2, which would bring a tear to our eyes (we'd get over it soon enough). Dom's dialogue in the trailer suggests he's about to go off on some suicide mission that will save Delta Squad and perhaps win the war. Ah well. We always preferred playing as Marcus anyway.