How about implementing an underground crypt/mausoleum map when doing the three skull level grave robber jobs. Perhaps you would need to equip a light source like a torch or lantern(occupying a weapon or shield slot), which illuminates only a small area(e.g. 5 or 6 hex diameter). Use coffins and other objects found in a crypt to add elevation advantages. Vampires eyes could glow red in the darkness. Add some spooky music and undead sound effects that seem to echo from the darkness surrounding the brothers, and you would make a welcome change to the usual overland battlemaps.
A wise general wins before the battle, while the ignorant general must fight to win - Zhuge Liang
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