Floppy
The incident that your CAA Information Notice refers to is as a result of
Airprox 2013115 (which was the other airprox between MC130 and GR4 referred to throughout this thread) and on page 3 of Airprox Report 2013
115 it does indeed state
Figure 2 depicts the incident geometry at this point; SSR 3A 3643 was the Tornado, SSR 3A 7000 was the MC130H (my bold)
However, this thread (and my comment) is about Airprox 2013
155 and the information at post #41 is lifted from that Airprox report. The MC130, as far as the Airprox Board are concerned, was squawking 0033.