Below you can find the downloads to some selected maps. When you're unsure on how to install them, it's recommended to use the Installers.
Marathon will add the maps in red in it's rotation soon, and others may follow.

It's recommended to download C&C_Cairo.mix and the CP1 & CP2 maps collection (if you don't have them already.)

Map name
C&C_BunkersTS.mix	Map file
C&C_Cairo.mix	Map file
C&C_FieldTS.mix	Map file
C&C_Gobi.mix	Map file
C&C_Last_Stand.mix	Map file
C&C_Mutationredux.mix	Map file
C&C_Sand.mix	Map file
C&C_Siege.mix	Map file
C&C_Snow.mix	Map file
C&C_Terrace.mix	Map file
C&C_Tropics.mix	Map file