I am not certain of the range obtainable with your equipment. We do have a rifle and gunnery range in the swampy area to the, well, North, of the castle.
The children are welcome to set up their equipment there.
An intentional disturbance to the integrity of the atmospheric envelope would be met by the same response as an accidental one. We have damage control teams standing by to ride the girder craft up to the area of damage, and seal the aperture. It is a highly sought-after post, similar to that of fire-fighters in traditional society. An even more exclusive group patrols the outside -- the vacuum side!
The children would also face harsh judgement. And speedy justice. Those who cannot be trusted not to endanger the entire community may find themselves deported. How good are they at holding their breath?
I'll tell them to confine their high powered "toys" to the gunnery range.
Where should I tell them to put the snares?