Pet faction same as player

[nilbog]

You might try checking the _INT field in the npc_types table. This determines if an npc will aggro a higher level target. (i.e. if you wanted a level 1 kos npc to attack a level 50, change its npc_types._int to 20)

I am not sure if the public source code/db still works this way, but I thought it was worth mentioning.

[bufferofnewbies]

Unfortunately, the npc will not attack higher level players. Just low level pets of those players. Player agro is nonexistant until the pet moves within agro range of the npcs.