adjust enclosed weapons rule

combat.tex

@@ -520,12 +520,13 @@ characters Attribute bonuses cannot go beyond the character's \roll{Wits}{Vigila
 (such as a moonless night)
 only gives a -1 penalty to characters with a \roll{Wits}{Vigilance} lower than their roll.
 
-\makeAutoRule{enclosedcombat}{Enclosed Spaces}{penalty equals weapon's Attack Bonus}
+\makeAutoRule{enclosedcombat}{Enclosed Spaces}{Weapons' Attack Bonus counts for half}
 \index{Caving!Enclosed Melee}
 cause serious problems for people wielding longswords, battle axes, and other large weapons.
 Daggers and shortswords often have an easier time in these locations.
 
-When a character has no space to swing a weapon -- either vertically or horizontally -- their Attack gains a penalty equal to the weapon's Attack Bonus.
+When a character has no space to swing a weapon -- either vertically or horizontally -- their weapon's Attack Bonus only counts for half the usual amount (rounded up).
+So weapons with a +1 Attack Bonus remain as they were, but weapons with a +3 Attack Bonus reduce their usefulness to a +2 Attack Bonus.
 
 \makeAutoRule{holdingBreath}{Holding the Breath}{+1~\glsentrytext{ep} per round, must breath in at -1~\glsentrytext{ap}}
 \index{Melee!Staying Silent}