The only maps that have been exposed

WMD

Picture
 WMD" is set in 1968 in the Ural mountain range. "WMD" features the SR-71 Blackbird and a new weapon, the Crossbow 

Payback

Picture
 In "Payback," the player is able to pilot a helicopter

Slaughterhouse

Picture
  The action-packed mission "Slaughter House" takes place in Huế, Vietnam, in 1968

Victor Charlie

Picture
"Victor Charlie" begins in a crashed helicopter, where the player must swim up the Huong River with only a knife.