> Drawing a map, recreating it inside a first person shooter, then spending hours playing (training) memorizing the map? I believe anyone could see that as a terroristic threat.

I'd like to point out that "legal" means "not forbidden by law", which in our default-allow mode means "no law exists that prohibits it". This affects both criminal charges for playing CS in a school-like map as well as the behaviour of the school in response to that.

The correct way to assess legality is therefore not "anyone could see" but "is there a law that prohibits it?"

(Note that the hurdle to expulsion may be lower than for criminal charges.)