Aside from the blasters we've been thinking of for him, he could also be equipped with several rocket/arrow blasters--Titan (not singled of course), BBB, Big Salvo, Arrowstorm, etc...to go along with the rapid fire guns. This would be an intimidating tank to approach an enemy stronghold with! For fun of course, unless you can be really accurate with those types of ammo.
By designating "must hit" areas, the power chair in effect becomes one of the Holy Grails of nerfing - the tank.
Yes, hit rules are a good thing to think about, but for now, I suppose the first priority of the thread should be what to equip this "tank" with
EDIT: I just realized that the OP mentioned that the group is mostly using stock blasters and stock darts! The small targets idea would probably be pretty fair. This is silly but I watched some videos of powerchairs moving and it seems they can turn at a decent speed, good enough to "dodge" rear hits, and then gets you turned around to fire back at the attacker. Also, that would help do a 360 degree spray of darts from Magstrikes or RF20s...maybe.
Edited by alberty, 29 January 2010 - 04:07 PM.