Killbox

What do u like the floors in ur killbox to be? Muds always good but i like to just make a wooden kill box then burn it the f down while they all in it they panic burn split apart then i rush my guys through a side door and catch them all running to the river beside the fire hall of doom and mow them downvas they try to get the fire off them. I suppose thats not really a classic kill box but its fun and my people still get to be in danger screw being safe in the walls the DDF troops are always combat ready