Rotate player 360 degrees once

Hello everyone!

I'm making a simple fps game and I have a problem. I want the player to spin around 360 degrees ONCE and shoot (please don't ask why). Now, I have this short script that creates the bullet and plays the gunshot sound. I found some tutorials and I modified it a bit. Here it is:

  var prefabBullet:Transform;
     var Spawnpoint:Transform;
     var shootForce:float;
     var shootSound: AudioClip;
     private var startRotY: float = 0; 
     private var endRotY: float = 0; 
     var currentRotY: float;
     
     function Update()
     {
         if(Input.GetButtonDown("Fire1"))
         {
             currentRotY = 0;
             startRotY = 0;
             endRotY = 360;
             transform.rotation = Quaternion.Euler(0,0 ,0);
             var instanceBullet = Instantiate(prefabBullet, Spawnpoint.transform.position, Spawnpoint.transform.rotation);
             instanceBullet.rigidbody.AddForce(transform.forward * shootForce);
             audio.PlayOneShot(shootSound);
         }
          currentRotY++;
       currentRotY = Mathf.Clamp(currentRotY,startRotY,endRotY);
       transform.rotation = Quaternion.Euler(0,currentRotY ,0);
     }

Now, here are the main problems:

1. I need to control the speed of rotating around somehow, since it spins reeealy slow.

2. I can't look around anymore. The angle of camera is locked. I can wiggle around for a bit but it resets almost instantly to the starting angle.

Any ideas?

Thanks, Kristoff