there is a range defense penalty as well, i dont remember if in previous version the night debuff included this or not, but the hit chance is what always draws me crazy, imagine, your two handed veteran companion with 81 melee skill misses a 98% hit, but you recall that in the earlier turn, your newly recruited lvl 1 labor with 43 melee skill hit the target twice while his hit chance was only 43%.
hope i didnt over exaggerate too much, but what i want to say is karma is a beeach!