Hello Sam, regarding this section I would like to add something I did for myself just for learn something new. I did follow your idea regarding the suspicious and come back to guard for enemy but I not very like the fact that the guard back on position turn on the wrong rotation, so I did little add on to your code:
On the AIController added as follow
Quaternion originalRotation;
float rotateSpeed = 5f;
On the Start:
originalRotation = transform.rotation;
And on the GuardBehaviour itself
// y value can be different from start coz we drop down enemy to a custom Terrain
// If the guard get back to the guard position, turn back on old rotation
if (guardPosition.x == transform.position.x && guardPosition.z == transform.position.z)
{
if (originalRotation != transform.rotation)
{
transform.rotation = Quaternion.Lerp(transform.rotation, originalRotation, Time.deltaTime * rotateSpeed);
Debug.Log(gameObject.name + " ROTATE BACK TO " + transform.rotation.eulerAngles.ToString());
}
}
Hope it will be usefull for someone 