The troops that form the heavy infantry are provided from all dwarven military chapters. When a battle-hardened dwarf warrior is growing old, he has to decide between retirement or vetaran status. As most warriors choose to become veterans, the heavy infantry chapter is supplied with a constant influx of fresh blood.
There is no codex that veterans are bound to and there are no qualms in the eyes of a warrior who has seen so much blood-shed during his live. As those warriors consider themselves to be “one step ahead” (towards death), dwarven heavy infantry is the true berserker elite of the Khor empire.
“None or all of them shall pass, there is no in-between!” – Dwain while sealing the northern Evergate
“Slay them all!” – Dwolin at Torengaads last stand
“Today, we shall bathe in blood!” – Deren-Dain during the siege of the eastern Evergate