Transform camTransform;

void Awake(){  
camTransform = Camera.main.transform;
}

void Start(){  
StartCoroutine(shakeCamHandler(10,3));
}

IEnumerator shakeCamHandler(int amount, int val){  

Vector3 cashedPos = camTransform.position;

for(int i=0;i<amount;i++){  

camTransform.position = new Vector3(cashedPos.x+Random.Range(-val,val),cashedPos.y+Random.Range(-val,val),cashedPos.z+Random.Range(-val,val));
yield return new WaitForSeconds(.05f);
}

camTransform.position = cashedPos;

}

    public IEnumerator moveToBySpeed (Transform obTransform, Vector3 end, float speed)
     {     
      Vector3 start = obTransform.position;
      float rate = 1.0f / Vector3.Distance (start, end) * speed;
      float t = 0.0f;     
      while (t < 1.0f) {     
       t += Time.deltaTime * rate;
       obTransform.position = Vector3.Lerp (start, end, t);
       yield return 0;
      }     
     }

StartCoroutine(moveToBySpeed(Твой_трансформ,конечный вектор, скорость);

public IEnumerator moveToByTime (Transform obTransform, Vector3 end, float timer)
     {     
         
      Vector3 start = obTransform.position;
      float t = 0.0f;     
      while (t < 1.0f) {     
       t += Time.deltaTime * (1.0f / timer);
       obTransform.position = Vector3.Lerp (start, end, t);
       yield return 0;
      }     
     }

StartCoroutine(moveToByTime(Твой_трансформ,конечный вектор, время за которое он должен сменить позицию);