Ork and Squat Warlords is an expansion for the Space Marine game. It contains a 76 page rule-book which has 10 color pages in the center.
The rules include details of the Ork and Squat (space dwarfs) forces including their titans.
The Orks have a plethora of troop and vehicle types with typically Orky names like braincrusha, speedsta and giblet grinda. Their titans are called gargants.
The Squats are much more sober with elements such as the Goliath mega-cannon, land train, colossus and leviathan.