While I've suggested people that use my Morrowind vampires mod, combine it with a protected NPCs mod, many people I believe find protect NPCs mods to be immersion breaking- just personal taste you know, and the better a mod is, the more options it has to appeal to a variety of tastes. So anyhow one complaint I've had about it, that I take very seriously, is that the vampires that spawn in Skyrim, can kill peoples quest givers, if they don't use a protect NPCs mod- and to some people that's a deal breaker for a mod.

So I'm trying to find a creative solution to that problem here, hence I've come here seeking advice about this issue.

Is there anything, some type of AI setting, or some type of script, I could make, so that the NPCs would only pose a threat to the player characters safety?

Potential ideas are...

A. Make said NPCs patrols farther away from any vanilla villages in Skyrim.

B. Make said NPCs extremely weak.

C. Make said NPCs spawn inside of dungeons only... Perhaps dungeons that have rival vampires in them.

D. Possibly find an alternate solution here???

E. Last Resort Plan: Delete the NPCs that attack Skyrim, but ONLY in an altered version ESP- the people who like them can still keep them in the MorrowVampsInvadeSkyrim ESP

I'm a little confused here.. so going to guess that these NPCs are the vampires of your mod. You can set them to a faction that is enemy to the player only, while possibly lower aggression(needs testing on your part) so they don't attack anyone else.

The faction must also be set to be "friends" with itself so members don't attack each other.

You'll need to alter the faction lists to do what you want.

Basically... the above. Set every faction as "fiends" to each other so that enemies will ONLY attack players. Otherwise...