Halo 3 has four player coop over xbox live. Get a full year plus one month free for just $38.77. Typically, it's $49.99 a year if you sign up directly through the XBOX 360. Here, you get not 12 months, but 13 months and for cheaper! XBOX 360 LIVE 12 MONTH GOLD SUBSCRIPTION HALO 3 GRAPHIC SALE