We've gone over the difference between the a wardog (as listed in miscellaneous equipment) and warhound (as listed in the Witch Hunter roster) pretty extensively in relation to warband rating. I believe the general consensus was that yes, in spite of "couting as equipment," the wardog still adds +5 to the rating.
However, does it count as a warrior for other purposes? This came up in my playgroup during the Breakthrough scenario:
"If the attacker manages to move two or more standing warriors to within 2" of the defenderís table edge, they have broken through and he wins the game."
It seems a bit cheese for a Witch Hunter hound to count for this victory condition (since it's a warrior), but not for a mercenary dog (since it's equipment). So once and for all: is it fair to say that, aside from being lost like equipment if its master dies, a wardog in every way counts the same as a warhound?
And on a separate note, animals cannot pick up wyrdstone counters, chests, etc. Correct?