Haven't really been following this game too much. Reach left such a bad impression I was pretty much done with Halo. But I've been catching up with Halo 4 mainly because of Forward Unto Dawn, and I have to say that it looks amazing. They apparently changed a lot of stuff and they don't look bad for a change, actually it looks pretty darn awesome! But could someone explain one thing for me? I was watching MLG just a minute ago and they were explaining something about a medal counter. That if you would get enough medals and fill up this meter you could call in a power weapon or something. It looked like you could choose between 3 different things, how does this work? Where can I find some kind of explanation?