Space Marine Terminators, described in game lore as first company veterans wearing the rare Tactical Dreadnought Armour (also known as Terminator Armour) were first released in 1989 for the board game "Space Hulk". 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. In 1997 the plastic five-man Terminator squad was made available for sale as a standalone box set, previously it was only available as part of the "Space Hulk" game set, complimenting the pewter metal Terminators that were available individually and as part of five-man squad sets for the Dark Angels Deathwing and Space Wolves Wolf Guard whose Terminators have additional ornaments compared to those of other Space Marine Chapters. 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, and game rules allow them to field a Deathwing army which features an all-Terminator force, along with including Land Raider tanks as transports and Dreadnought walkers for support. To further distinguish them from other Chapters' Terminators, the Deathwing Terminators have special in-game rules and unique equipment such as the Plasma Cannon and Mace of Absolution (wielded only by Deathwing Knights). The third edition of "Space Hulk", released in September 2009, featured new sculpts of Terminators designed by Alex Hedström specifically for "Space Hulk", instead of being shared with the sets for the tabletop game "Warhammer 40,000". Each of the twelve miniatures representing Terminators has a distinct appearance, such as Brother Omnio being shown consulting a scanner mounted in his Power Fist.