That was my thoughts on the matter, and I intend to have two units of Reikguard at that size. Sure, they won't be that killy but their main role is to plunge into combat with one of those annoying strength 3 hordes (I'm looking at you skavenslaves) and rely on their average WS plus 1+ armour +stubborn leadership 8 to prevent that mob posing much of a threat to our less than stellar infantry. Heck, with 7 strength 4/6 attacks and 3 strength 3, they might even win combat.