Knockback player

Hi !

I tried to knockback the player when he collide with an ennemy but i’ts not really a knockback but a teleportation backward. Here is the code :

    [SerializeField]
    private float force;

    void OnCollisionEnter(Collision collision)
    {
        if (collision.transform.tag == "Player")
        {
            collision.transform.GetComponent<CharacterController>().Move(this.transform.forward * force);
            GameController.removeLife(1);
        }
    }

How can I do ?
Thank you !

Do public Rigidbody rb, then do
void OnCollisionEnter(Collision collision)
{
if (collisionInfo.collider.tag == “Enemy”)
{
rb.AddForce(Vector3.back * forwardForce * Time.deltaTime, ForceMode.VelocityChange);
GameController.removeLife(1);
}
}

No problem, where do I need to put theses lines ?
instead of mine ? Because if I try to type only your lines like this :
public Rigidbody rb;

    void OnCollisionEnter(Collision collision)
    {
        if (collision.transform.tag == "Player")
        {
            rb.AddForce(Vector3.back forwardForce Time.deltaTime, ForceMode.VelocityChange);
            GameController.removeLife(1);
        }
    }

VS studio tells me that “forwardForce” and “Time” does not exist. He expected a “,”.

PS: The script is on my ennemies, should I make one for the player instead ?