Enemy detection while pathfinding through the map

Hi guys, im creating a MOBA game like League of Legends. I'm almost done but there is one final thing to be made. I have enemies going from my base to the enemy base with multiple waypoints to get there. In what I need help, through the path that the enemies are running to get to the enemy base there are multiple turrets.

I want the enemies to:

1. When a turret is near, they stop going to the next waypoint

2. Move to the turret that is near them

3. Stop at a certain distance of the turret

4. Play an animation of attack (not necessary)

5. When the turret dies the enemy goes to the next waypoint (The turret is already taking damage when the minion collides with the turret)

6. Repeat this whenever a turret is near

I got to demonstrate the game tomorrow to my class and teachers, so any help is welcome.

Working Enemy Waypoint Script:

 var waypoint : Transform[];
 var speed : float = 20;
 var currentWaypoint : int;
            
 // Declaração de variáveis
 
 function Update()
 {
  if(currentWaypoint < waypoint.length)
  {
  var target : Vector3 = waypoint[currentWaypoint].position;
  // Saber onde está o caminho a percorrer
  var moveDirection : Vector3 = target - transform.position;
  var velocity  = rigidbody.velocity;
  
  // Rodar para o nosso caminho com determinada velocidade 
  
  if(moveDirection.magnitude < 1)
  // Saber o valor absoluto do número
  {
  currentWaypoint++;
  }
  else
  {
  velocity = moveDirection.normalized * speed;
  }
  }
  
  // Vai mover-se como na realidade e também poderá ser influenciado pela gravidade
  rigidbody.velocity = velocity;
  transform.LookAt(target);
 }

Script that im working with waypoints and enemy detection:

 var waypoint : Transform[];
 var speed : float = 20;
 var currentWaypoint : int;
 var Damage = 15;
 var maxDistance = 15;
            
 // Declaração de variáveis
 
 function Update()
 {
  if(currentWaypoint < waypoint.length)
  {
  var target : Vector3 = waypoint[currentWaypoint].position;
  // Saber onde está o caminho a percorrer
  var moveDirection : Vector3 = target - transform.position;
  var velocity  = rigidbody.velocity;
  
      var nearestDistanceSqr = Mathf.Infinity;
      var taggedGameObjects = GameObject.FindGameObjectsWithTag("MinionR"); 
      var nearestObj : Transform = null;
     
      // Loop that verifies who is the nearest enemy
      for (var obj : GameObject in taggedGameObjects) 
      {
          var objectPos = obj.transform.position;
          var distanceSqr = (objectPos - transform.position).sqrMagnitude;
      
          if (distanceSqr < nearestDistanceSqr) 
          {
              nearestObj = obj.transform;
              nearestDistanceSqr = distanceSqr;
          }
      }
      
  //Mecanismo de Disparo
  var distance = (nearestObj.transform.position - transform.position).magnitude;
  if(distance < maxDistance && Time.time > TimeToFireAt)
  {
  Fire(); //Criar disparo e efeitos
  TimeToFireAt = Time.time + FireRate; //Set Time
  }
  
  // Rodar para o nosso caminho com determinada velocidade 
  
  if(moveDirection.magnitude < 1)
  // Saber o valor absoluto do número
  {
  currentWaypoint++;
  }
  else
  {
  velocity = moveDirection.normalized * speed;
  }
  }
  
  // Vai mover-se como na realidade e também poderá ser influenciado pela gravidade
  rigidbody.velocity = velocity;
  transform.LookAt(target);
 }

Regards, ExyloN