Cat 3B DH
I think one of the main lessons for the pilot in Low Vis situations is the decision making at DH or below.
In my opinion it is at this stage when if the pilot feels he has adequate visual cues and any of the malfunctions happen then it is better to land. (A330).
There have been trainees who "forgot" to flare and the landing gear can take the resultant rate of descent comfortably.
Each pilot machine combine has a decision making process of its own.
It is a rare situation and very few may have actually had this in real life. It would be better if the same is practised repeatedly in the simulator and analysed.