diff --git a/src/engine/objects/ItemTemplate.java b/src/engine/objects/ItemTemplate.java
index f6e169ac..84bbdb33 100644
--- a/src/engine/objects/ItemTemplate.java
+++ b/src/engine/objects/ItemTemplate.java
@@ -121,8 +121,10 @@ public class ItemTemplate {
     public boolean rune_group_is_guild = false;
     public String rune_dsc;
     public String rune_fx_txt;
-    public int rune_group_tactics;
-    public int rune_group_role_set;
+    public EnumSet<Enum.MobBehaviourType> rune_group_tactics = EnumSet.noneOf(Enum.MobBehaviourType.class);
+    ;
+    public EnumSet<Enum.MobBehaviourType> rune_group_role_set = EnumSet.noneOf(Enum.MobBehaviourType.class);
+    ;
     public boolean rune_renderable = false;
     public int rune_natural_power_attack;
     public final HashMap<String, String> rune_sparse_data = new HashMap<>();
@@ -492,14 +494,12 @@ public class ItemTemplate {
                 rune_group_is_guild = ((Boolean) rune_group.get("group_is_guild"));
                 rune_dsc = (String) jsonObject.get("rune_dsc");
                 rune_fx_txt = (String) jsonObject.get("rune_fx_txt");
-                rune_group_tactics = ((Long) jsonObject.get("rune_group_tactics")).intValue();
 
-                EnumSet<Enum.MobBehaviourType> tactics = EnumSet.noneOf(Enum.MobBehaviourType.class);
+                int group_tactics_bitvector = ((Long) jsonObject.get("rune_group_tactics")).intValue();
+                rune_group_tactics.addAll(Enum.fromLong(group_tactics_bitvector, Enum.MobBehaviourType.class));
 
-                if (rune_group_tactics != 0)
-                    tactics.addAll(Enum.fromLong(rune_group_tactics, Enum.MobBehaviourType.class));
-
-                rune_group_role_set = ((Long) jsonObject.get("rune_group_role_set")).intValue();
+                int group_role_bitvector = ((Long) jsonObject.get("rune_group_role_set")).intValue();
+                rune_group_role_set.addAll(Enum.fromLong(group_role_bitvector, Enum.MobBehaviourType.class));
 
                 JSONArray enemy_types_json = (JSONArray) jsonObject.get("rune_enemy_monster_types");