JTO, until a couple of years ago at least the recovery to Lossie was “squawk standby, contact tower stud 2” but it may have changed. I don’t recall any reference to IFF/SSR in the AIRPROX report.
Beags, makes a good point, Sim sorties tend to concentrate on the tactical aims of the sortie and end with an emergency for currency or a freeze and get out. In 15 years as a sim instructor I don’t remember any sorties that concluded with a busy night visual circuit. I think the report refers to one of the pilots flying the 05 circuit for the first time. This is one element of flying that cannot be replaced with sim time.