diff --git a/src/main/java/noppes/npcs/client/gui/mainmenu/GuiNpcAI.java b/src/main/java/noppes/npcs/client/gui/mainmenu/GuiNpcAI.java
index da1325d49..0a316636a 100644
--- a/src/main/java/noppes/npcs/client/gui/mainmenu/GuiNpcAI.java
+++ b/src/main/java/noppes/npcs/client/gui/mainmenu/GuiNpcAI.java
@@ -71,6 +71,15 @@ public class GuiNpcAI extends GuiNPCInterface2 implements ITextfieldListener, IG
     	}
 		addLabel(new GuiNpcLabel(25,"ai.combatpolicy", guiLeft + 150, guiTop + 165));
 		addButton(new GuiNpcButton(25 ,guiLeft + 230, guiTop + 160, 60, 20, EnumCombatPolicy.names(), ai.combatPolicy.ordinal()));
+		if (ai.combatPolicy == EnumCombatPolicy.Stubborn)
+		{
+			String label = "";
+            label = "gui.combatchance";
+            addLabel(new GuiNpcLabel(21, label, guiLeft + 300, guiTop + 140));
+			addTextField(new GuiNpcTextField(4,this, fontRendererObj, guiLeft + 380, guiTop + 135, 30, 20, ai.tacticalChance + ""));
+			getTextField(4).integersOnly = true;
+			getTextField(4).setMinMaxDefault(1, 100, 5);
+		}
 
 		getButton(17).setEnabled(this.ai.onAttack == 0);
     	getButton(15).setEnabled(this.ai.onAttack == 0);
@@ -91,6 +100,9 @@ public class GuiNpcAI extends GuiNPCInterface2 implements ITextfieldListener, IG
 		if(textfield.id == 3){
 			ai.tacticalRadius = textfield.getInteger();
 		}
+		if(textfield.id == 4){
+			ai.tacticalChance = textfield.getInteger();
+		}
 		if(textfield.id == 6){
 			ai.distanceToMelee = textfield.getInteger();
 		}
diff --git a/src/main/java/noppes/npcs/entity/EntityNPCInterface.java b/src/main/java/noppes/npcs/entity/EntityNPCInterface.java
index 34af20de2..78b055a2c 100644
--- a/src/main/java/noppes/npcs/entity/EntityNPCInterface.java
+++ b/src/main/java/noppes/npcs/entity/EntityNPCInterface.java
@@ -535,7 +535,7 @@ public abstract class EntityNPCInterface extends EntityCreature implements IEnti
 								}
 								break;
 							case Stubborn:
-								if (closerTargetFound && combatHandler.shouldChangeTarget(5.0)) {
+								if (closerTargetFound && combatHandler.shouldChangeTarget((double) ai.tacticalChance / 100)) {
 									setAttackTarget(attackingEntity);
 								}
 								break;
@@ -719,6 +719,7 @@ public abstract class EntityNPCInterface extends EntityCreature implements IEnti
 					case HitNRun : this.tasks.addTask(this.taskCount++, aiResponse = new EntityAIAvoidTarget(this)); break;
 					case Ambush : this.tasks.addTask(this.taskCount++, aiResponse = new EntityAIAmbushTarget(this, 1.2D, this.ai.tacticalRadius, false)); break;
 					case Stalk : this.tasks.addTask(this.taskCount++, aiResponse = new EntityAIStalkTarget(this, this.ai.tacticalRadius)); break;
+					// case Twist: this.tasks.addTask(this.taskCount++, aiResponse = new EntityAITwistTarget(this, 1.3D, this.ai.tacticalRadius)); break;
 					default :
 				}
 			}