random attack animations C#

NOT Mechanim and NOT java. Anything remotely pertaining to my question I have come across concern one or both of the above mentioned conditions. My attack script is C# and I love it but would like to add a variety of melee attacks rather than the enemy just cycling through his arms swinging until the player kills him. the script I have I got online and the author even commented the area where such an array would go down on line 86

public void Attack() { //Add attacking stuff here

 }

}

obviously the array would need to be mentioned up top and I tried that. No errors just nowhere to put animations. I have audio randomization scripts and trying to adapt from that. anyway, full attack script below

 using UnityEngine;
 using System.Collections;
 
 
 
 public class AttackArray : MonoBehaviour
 {
 
     public enum EnemyState{IDLE = 0, WALK = 1, RUN = 2, ATTACK = 3, KILL = 4};
     public AnimationClip enemyIdle;//setting animations
     public AnimationClip enemyWalk;//walking
     public AnimationClip enemyRun;//running/chasing
     public AnimationClip enemyAttack;//attacking player
     public AnimationClip enemyKill;//killing player
     public AnimationClip enemyDie;//killing player
     public NewEnemyHealth enemyHealth;
     public Transform Player;//adds the player to the script
     
     private int Stopped = 0;
     public int WalkingSpeed = 1;//sets the normal walking speed
     public int RunningSpeed = 5;//sets the running (chase player) speed
     public int DefaultRunningSpeed = 5;
     public int MaxDist= 8;//maximum distance the player can be before enemy stops chasing the player
     public float MinDist= 1;//how close the player can be to enemy for enemy to start chasing player
     public EnemyState currentState;
     
     private bool PlayerDetected;
     
     void Update()
     {
         if(Vector3.Distance(transform.position,Player.position) <= MaxDist)//if that object has the tag "Player"
         {
             PlayerDetected = true;
             if (PlayerDetected)
             {
                 
                 transform.LookAt(Player);//Looks at the player
                 currentState = EnemyState.RUN;
                 transform.position += transform.forward*RunningSpeed*Time.deltaTime;//follows the player
             }
         }else if(Vector3.Distance(transform.position,Player.position) > MaxDist)
         {
             RoamAround ();
         }
         if (Vector3.Distance (transform.position,Player.position) < MinDist)
         {
             currentState = EnemyState.ATTACK;
             Attack ();
             
         }
         
         if (currentState == EnemyState.IDLE)
         {
             //print ("The enemy is idle.");
             GetComponent<Animation>().CrossFade (enemyIdle.name);
         }
         else if (currentState == EnemyState.WALK)
         {
             
             GetComponent<Animation>().CrossFade (enemyWalk.name);
         }
         else if (currentState == EnemyState.RUN)
         {
             
             
             GetComponent<Animation>().CrossFade (enemyRun.name);
             RunningSpeed = DefaultRunningSpeed;
         }
         else if (currentState == EnemyState.ATTACK)
         {
             
             GetComponent<Animation>().CrossFade (enemyAttack.name);
             RunningSpeed = Stopped;
         }
         else if (currentState == EnemyState.KILL)
         {;
             
             GetComponent<Animation>().CrossFade (enemyKill.name);
         }
         
     }
     void RoamAround()
     {
         currentState = EnemyState.IDLE;//Add other RoamAround stuff here
     }
     public void Attack()
     {
         //Add attacking stuff here
         //Application.LoadLevel ("GameOver");
     }
 }