Somehow, I associate spikes with chaos. Or do you mean the "metal-plates-cut-to-look-like-teeth" -spikes? Hmm... where could I put those in there?
A dozer-blade? On top of the gun-shield?
I'm thinking about adding also a secondary attack (which will use the hull-mounted shoota)... since I assume that the artillery units in this mod will also have defence values. I think artillery units should not have attack value, since it could screw up AI - altough I'm not sure about that.