Bungie's last map pack, Noble Map Pack
Defiant Map Pack with Condemned (Solid 4v4 map), Highlands (gorgeous BTB map), and Unearthed (Firefight map)
Anniversary map pack, with Beaver Creek, Damnation, Hang Em High, Prisoner, Timberland (Halo CE PC map), and Headlong (Halo 2 City BTB Map)
thx!