Arrows, undead mobs, and skill mods

[Diodimus]

Recently while putzing around in Catacombs with some guildies I noticed that my arrows weren't doing as much damage as they tend to do on many raid mobs even though i was using undead bane arrows. I know this could come from several factors such as higher AC, lack of a pally so no crits, etc. However, one member of my group made a comment that undead have a natural resistance coded in vs slashing and piercing items and that arrows worked as piercing weapons. This paired with a conversation ;eaves me with a few questions.

Do undead have a resistance to slashing and piercing coded in?

Are arrows considered piercing items or is archery damage processed completely separate?

Do piercing mod items increase bow damage?


These are actual questions that have no numeric support. Merely rumors and approximated observations. If anyone has any legit answers or input, I would appreciate it.

 

[Diodimus]

Ah, thanks for the info. So is it safe to say that the damage difference was due to a difference in mob ac? I find it odd that mobs in cata have higher ac than mobs in UC, however, I am sure that the amount of raw hp works the other way around in a vastly greater manner.