sound isn't so terrible

Assets/_Project/Scripts/Combat/TeslaTowerFireSound.cs

@@ -20,6 +20,10 @@ namespace TD.Combat
         [Tooltip("Sound played each time the coil discharges.")]
         [SerializeField] private AudioClip fireClip;
 
+        [Tooltip("Pitch is randomized within this range each shot to avoid a mechanical loop.")]
+        [SerializeField] private float minPitch = 0.93f;
+        [SerializeField] private float maxPitch = 1.07f;
+
         private TowerCombat combat;
         private AudioSource audioSource;
 
@@ -42,7 +46,11 @@ namespace TD.Combat
         private void HandleAreaFired(Vector3[] positions)
         {
             if (fireClip != null)
-                audioSource.PlayOneShot(fireClip);
+            {
+                audioSource.pitch = Random.Range(minPitch, maxPitch);
+                audioSource.clip  = fireClip;
+                audioSource.Play();
+            }
         }
     }
 }