Yeah there is definitely a learning curve with Bussekin... I started 2.5 years ago and think I have a pretty good handle on acronyms and nomenclature about a year into my piglet status.
The "Nuclear" option is like an extra option that is different on each model... Some may be a fuller, handle lightening, rounded edges, different handle material, etc.
Some terminologies like "Fusion", "Nano Fusion", "Special Forces", etc. describe the handle shapes... Whole some others like "Badger", for example, denotes which family of knife designs it descended from.
Honestly, the acronyms and nomenclature seems overwhelming and complicated at first, but once you get a handle on it, they make sense and are pretty fun.
Good luck, piglet!