@Imperious:
You talking about SPA: self propelled artillery?
these would be 3-3 costing 6, except when they roll a one they pick the land unit they want to kill…tank destroyers
Bystander 1 :-D Brilliant!!
Bystander 2   :cry: Genius…shear genius…
Me :| Well, I think choosing a target on a 1 is a novel idea, but perhaps too powerful.  I take it that ability is in place of supporting infantry.  The thing is about tank destroyers is that they were powerful but vulnerable due to really light armor.  I say cost 6, attack 4, defend 2 is both more historically accurate, and more unique than just being an “anti-tank”.
Still, if it doesn’t support infantry, can it really be called “artillery” based on AA standards and tradition?  Also, from a technical standpoint, I don’t think we can call a tank destroyer “artillery”.  While a TD may have a bug gun, the gun must be able to fire at extreme angles in order to qualify.
Here’s my idea:
Name                               Attack            Defend          Cost           Move                           Special
Light Mobile Artillery             2                       2                   5                   2                      Can support inf on 1-1 basis
Heavy Mobile Artillery           3                        2                   6                  2                       Can support inf on 1-1 basis
Still, I really like the tank destroyer idea.  At this rate, we’ll overload the game with unit types.