Space Marine Terminators are described in game lore as first company veterans in each Space Marine Chapter, having earned the right to don the sacred Tactical Dreadnought Armour or Terminator Armour. Space Marine Terminators were originally only used in Space Hulk-type scenarios and not the open battlefield, but rules were added in White Dwarf magazine and subsequent releases of "Warhammer 40,000" and "Epic" for their deployment in conventional battles. Most "Warhammer 40,000" army list game rules restrict the deployment of Terminators to a small part (1-2 squads of 5 men each) of a player's Space Marine army since they are considered elite troops. The Dark Angels' Deathwing Company is unique among Marine first companies in being composed of only Terminators. The Dark Angels can field a Deathwing army which features an all-Terminator force, along with including Land Raider tanks as transports and Dreadnought walkers for support.