Screen.SetResolution(Screen.currentResolution.width, Screen.currentResolution.height, true);

using UnityEngine;
using System.Collections;

public class MouseLookPlus : MonoBehaviour {
      public float xSpeed = 12.0f;
      public float ySpeed = 12.0f;
           
      public Transform target;
           
      public float scrollSpeed = 12.0f;
           
      public float zoomMin = 1.0f;
      public float zoomMax = 20.0f;
           
      public float distance = 2;
           
      public float Ypos;
           
      public Vector3 position;
      public bool isActivated;
           
      float x=0.0f;
      float y=0.0f;
           
      void Start () {
       Vector3 angles = transform.eulerAngles;
       x = angles.y;
       y = angles.x;
       position = -(transform.forward*distance)+target.position;
       transform.position=position;
       Ypos = transform.position.y;
      }
      void LateUpdate () {
       if (Input.GetMouseButtonDown(1)) {
        isActivated = true;
       }
       if (Input.GetMouseButtonUp(1)) {
        isActivated = false;
       }
            
            
       if (target && isActivated) {
        x+= Input.GetAxis("Mouse X") * xSpeed;
        y-= Input.GetAxis("Mouse Y") * ySpeed;
             
        transform.RotateAround(target.position, transform.up, x);
        transform.RotateAround(target.position, transform.right, y);
            
        transform.rotation = Quaternion.Euler(transform.rotation.x,transform.rotation.y,0);      
        transform.rotation = Quaternion.LookRotation(target.position - transform.position);
             
        Ypos = transform.position.y;
             
        x=0;
        y=0;
       }else {
        if (Input.GetAxis("Mouse ScroolWheel") !=0) {
        distance = Vector3.Distance(transform.position,target.position);
        distance = zoomLimit(distance - Input.GetAxis("MouseScrollWheel")*scrollSpeed, zoomMin, zoomMax);
        transform.position = -(transform.forward*distance)+target.position;
        transform.position = new Vector3(transform.position.x,Ypos,transform.position.z);      
        transform.position=position;
        }
       }
      float d2 = Vector3.Distance(transform.position, target.position);

      if  (d2 != distance) {
          transform.position = -(transform.forward*distance) + target.position;      
          transform.position = new Vector3(transform.position.x,Ypos,transform.position.z);      
          transform.position = position;      
       }
           
      }
      public static float zoomLimit(float dist, float min, float max){      
        if (dist<min)      
          dist=min;      
         if(dist>max)      
          dist=max;      
         return dist;      
        }      
      }

CameraPrefab.Rotate(CameraPrefab.up,Recoil,Space.Self);