> You can’t buy guns without going through hunting training, getting certified and then they keep registration which links your hunting rifle directly to you

In Switzerland, it's very easy[0] to acquire a weapons, the requirements are:

  - you must be at least 18 years old,
  - you must not be subject to a deputyship or a supervision order,
  - you must not give any cause to assume that you could harm yourself or anyone else with the weapon,
  - you must not have a criminal record for violent or dangerous offences or repeated felonies or misdemeanours.

[0] - https://www.ch.ch/en/acquiring-firearm/