Shoot projectile according to rotation

I have been trying for hours and I can't get a projectile to shoot the way it is facing. The projectile is only shooting directly forward. I need it to shoot up into the air. I have its rotation set to the rotation of the camera, but how do I add force in that direction.

Thank you in advance.

   function Fire(){
         var power:int;
         power=0;
         while(Input.GetButton("Fire1")){
         power++;
         Debug.Log("Power"+power, gameObject);
         yield WaitForSeconds(0.1);
         }
         power = power *5;
         
         var angle = Vector3(cam.transform.eulerAngles.x,cam.transform.eulerAngles.y,cam.transform.eulerAngles.z);
           // Instantiate the projectile at the position and rotation of this transform
         var clone : Rigidbody;
         //X,Y,Z
         var positionn = Vector3(transform.position.x, transform.position.y+1, transform.position.z);
         
         clone = Instantiate(projectile, positionn, transform.rotation);
         
         //rotate
         clone.transform.eulerAngles= angle;
         // Give the cloned object an initial velocity along the current 
         // object's Z axis
         clone.velocity = transform.TransformDirection (Vector3.forward * power);
         
         }