diff --git a/src/main/java/me/kaiyan/missilewarfare/blocks/GroundMissileLauncher.java b/src/main/java/me/kaiyan/missilewarfare/blocks/GroundMissileLauncher.java
index 6ef32a9..b6e2cb3 100644
--- a/src/main/java/me/kaiyan/missilewarfare/blocks/GroundMissileLauncher.java
+++ b/src/main/java/me/kaiyan/missilewarfare/blocks/GroundMissileLauncher.java
@@ -86,7 +86,7 @@ private void blockDispense(BlockDispenseEvent blockDispenseEvent, Dispenser disp
         TileState state = (TileState)dispenser.getBlock().getState();
         PersistentDataContainer cont = state.getPersistentDataContainer();
 
-        if (cont.get(new NamespacedKey(MissileWarfare.getInstance(), "canfire"), PersistentDataType.INTEGER) != 1){
+        if (cont.has(new NamespacedKey(MissileWarfare.getInstance(), "canfire"), PersistentDataType.INTEGER) && cont.get(new NamespacedKey(MissileWarfare.getInstance(), "canfire"), PersistentDataType.INTEGER) != 1){
             MissileWarfare.getInstance().getServer().broadcastMessage("Missile at : "+dispenser.getBlock().getLocation().toVector() +" Is unable to fire: Missing GREEN_CONCRETE Below");
         }
 
diff --git a/src/main/java/me/kaiyan/missilewarfare/missiles/MissileController.java b/src/main/java/me/kaiyan/missilewarfare/missiles/MissileController.java
index 66a0a35..feebba8 100644
--- a/src/main/java/me/kaiyan/missilewarfare/missiles/MissileController.java
+++ b/src/main/java/me/kaiyan/missilewarfare/missiles/MissileController.java
@@ -213,17 +213,17 @@ public void Update(BukkitRunnable run, MissileController other){
         world.spawnParticle(Particle.CAMPFIRE_COSY_SMOKE, pos.toLocation(world), 0, 0, 0, 0, 0.1, null, true);
         world.spawnParticle(Particle.CAMPFIRE_COSY_SMOKE, (pos.toLocation(world).subtract(velocity.divide(new Vector(2,2,2)))), 0, 0, 0, 0, 0.1, null, true);
         if (target.distanceSquared(pos) < (speed*speed)*1.1){
-            if (Math.random()>0.1){
+            if (Math.random()>MissileWarfare.getInstance().getConfig().getDouble("AA-missile-success")){
                 run.cancel();
                 return;
             }
-            explode(run);
-            for (int i = 0; i < 40; i++) {
-                world.spawnParticle(Particle.CAMPFIRE_COSY_SMOKE, pos.toLocation(world), 0, Math.random() - 0.5, Math.random() - 0.5, Math.random() - 0.5, 0.1, null, true);
-                world.spawnParticle(Particle.FLAME, pos.toLocation(world), 0, Math.random() - 0.5, Math.random() - 0.5, Math.random() - 0.5, 0.1, null,true);
-            }
             if (other.update != null) {
                 other.explode(other.update);
+                explode(run);
+                for (int i = 0; i < 40; i++) {
+                    world.spawnParticle(Particle.CAMPFIRE_COSY_SMOKE, pos.toLocation(world), 0, Math.random() - 0.5, Math.random() - 0.5, Math.random() - 0.5, 0.1, null, true);
+                    world.spawnParticle(Particle.FLAME, pos.toLocation(world), 0, Math.random() - 0.5, Math.random() - 0.5, Math.random() - 0.5, 0.1, null,true);
+                }
                 run.cancel();
             }
         }
diff --git a/src/main/resources/config.yml b/src/main/resources/config.yml
index ad8c61b..100d0a6 100644
--- a/src/main/resources/config.yml
+++ b/src/main/resources/config.yml
@@ -130,6 +130,9 @@ saved-packs:
     - pack-TW
     - pack-FR
 
+# chance for anti missile missile to successfully fire.
+AA-missile-success: 0.6
+
 logging:
     # Sends a message to console on missile shot :O
     logMissileShots: true