These figures would be awesome in a Zombie game. I can see it now, in order to combat and protect its flock the Vatican (the Pope) has issues a Papal Bull (Decree) for all priests, monks and nuns to carry weapons, and to dispose of the vile, filthy, evil undead abominations that are now walking the earth.
I know it was mentioned Greek and Russian Orthadox priests, and while I would also love to see some other Religions represented too, but also understand that certain ones may be a very touchy subject to make any figures of the religious leaders bearing arms.