CAT II required RVR is 300 m.
If you would need to do MANUAL landing for CAT II on a D category aircraft, it is increased to 350 m.
For category C there is no such additive.
A32x pilots are usually not trained to CAT II manual landing ops, hence it
should not be available to them anyways. Always check LIM for autoland, some machines only have 2500 pressure altitude.
https://store.icao.int/en/manual-of-...tions-doc-9365 this one is quite useful for thorough understanding.
BTW: DH needs to be derived from the aircraft geometry based on the required visual segment. Further reading from G2G CATII/III.
