halo 2 on my xbox 360’s xbox live account wont work!what’s wrong?

every time I try to play halo 2 on my xbox 360’s xbox live account it I can get it so I create my own session but I can’t get it to go to matches where a lot of people are already playing it and or waiting for a game to start. it keeps saying i’m missing maps required. I’ve downloaded all the free maps I’m only missing two packs you have to pay for. there has to be atleast 1 game going on the free maps. why can’t I find one of those games. What’s wrong?!?!?!?!?

first off, you shouldn’t be playing halo 2. second, the reason you can’t find a match is because you don’t have all the available maps that are free and that you have to pay for. halo 2 isn’t like other 360 games out there where you can still play even though you don’t have all the maps.

get cod 4