Another silly one... It sounds weird to me
A Japanese Rider squad that just pins must bail out, but if it fails a MC, dont have to bail out.
Its that right?
It depends.
"D6.23 TARGET STATUS: Riders are always Vulnerable to fire; i.e., they can never be BU like an AFV crew or halftrack Passenger, nor do they receive any CE benefit. Riders are subject to Collateral Attack. AFV Riders
must Bail Out if pinned or broken."
If a Japanese units fails a MC, this does not necessarily mean that it breaks. It might just stripe. In that case, it would not have to Bail Out. If it can't stripe or reduce to a HS, which means if it is a HS Rider that fails its MC, then it breaks and must Bail Out.
If it Pins, the Japanese unit must Bail Out. Note that
afterwards, per G1.13 what follows is considered an "Other Break" and not an "Attack Break".
von Marwitz