Just did a quick search.
there's some stuff in sc_spawn7 that is commented out
//SetSpawnInCondition(NW_FLAG_STEALTH);
// If the NPC has stealth and they are a rogue go into stealth mode
There is sooooo many AI scripts that seem to be overlapping and duplicating each other.
Honestly the whole system probably needs to be scrapped and redone but idk who has the time to take on a project that big right now. Maybe after Deth & I retire from our jobs in a few years?