I usually just make two large elipses and have AI spawn randomly inside it. The ai will make waypoints inside this elipse. Thus creating the illusion of real roaming AI. They start on server restart and just wander about like players.
Sarge is the only AI that I really liked. Especially the truly roaming ai: You could have them spawn on server startup without a player needed and roam the server till they died. That made it so much better than the ones that spawn and despawn on players.
Going to see if this works with dayz...
0:40:07 Warning Message: Script z\addons\dayz_server\compile\server_spawnTraders.sqf not found
0:40:08 Warning Message: Script z\addons\dayz_server\system\dynamic_vehicle.sqf not found
You running epoch?