For me to explain that......
I'd have to be at home and not at work, cause its a whole lot of typing.
SHort of it is, - cloning.
Theres two ways to clone. Remap ID's of a the data files of a sub, and rename it, so it becomes unique (and hence a new sub), and you can apply its own unique statistics
or Inheirt the data files from a sub, and instantiate it as a new object, but in this method, you have two subs that share a dependancy on the same files. So they both will have the same statistics - just a different name, crew, sensor and equipment loadout, or even a different nationality. Many units are borrowed in the game like this. Tug boat for example, every country has one, and they're all inheirted from the same set of files.
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