Forge world regiment of renown introduced in Tamurkhan: the Throne of Chaos. Marrienburg based regiment.
Eventually they were among the defenders of Middenheim in the End Times (in the novel).
One of the 2 forge world kits released without arms, for those you were expected to get the corresponding state trooper set. Luckily you had swordsmen arms left over from building your 40 strong horde of halbadiers.