Kossar
From Warhammer - The Old World - Lexicanum
Kossars are a unit in the Kislev Beastiary. They were an Ungol tribe whop worked as mercinaries, fighting with the Gospodars against the Ungols and had adopted a unique style of fighting, that of axe and bow. They went on to teach the Gospodars these tactics and nowadays they are a mixed unit of Ungol and Gospodar soldiers. They are trained and kept by the Tzar/Tzarina as a standing Kislev force and are well trained, meeting the enemy both at range and in combat.