guards get Mob.guardedCity assigned to

src/engine/ai/MobileFSM.java

@@ -310,6 +310,7 @@ public class MobileFSM {
             return;
         else{
             if(mob.isPlayerGuard && mob.guardedCity._playerMemory.size() < 1 && mob.playerAgroMap.isEmpty())
+                //guards use aggro map and players in their local city zone
                 return;
         }
         if (mob.despawned && mob.isPlayerGuard) {

src/engine/objects/Mob.java

@@ -1989,6 +1989,7 @@ public class Mob extends AbstractIntelligenceAgent {
                 else {
                     this.BehaviourType = MobBehaviourType.GuardCaptain;
                     this.spawnTime = 900;
+                    this.guardedCity = ZoneManager.getCityAtLocation(this.bindLoc);
                 }
 
             this.deathTime = 0;