• tag and resref should match unless it is specifically needed for scripting
• newly created blueprints and area gets default resref, to change it you need to make a copy of that blueprint/area

Every area needs to have following scripts set:

mod_area_enter in OnEnter event
mod_area_exit in OnExit event

• make sure that waypoints to which area transition leads is not inside area transition trigger back. This is common building error
• it is not needed to change tag of area transition triggers, don't do that
• doors should be linked with doors otherwise they won't open from the other side, unless you want exactly that behavior
• if the doors are leading to subarea with no return back link them to waypoint or use invisible door

Never use the creature wizard. If you want to make a creature, find a creature closes to what you want by strength or/and race and make a copy. That will allow you to set its resref. Creature wizard and level up wizard too tends to give NPC starting gear for its class and tons of useless feats.

Since there is not an immunity to stun and since mind-spells immunity doesn't include stun anymore, if you want to make creature immune to stun you need to grant her feat Tough as Bone.

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