The labels displayed are taken from a couple language files.
Have't tried yet, but would probably golike this:
Look up the name for the spec you wanna change in specialisations, first column.
Example "Tank_School"
Search for that exact string in ..\Content\Language
You should get a hit for each language, but can get by 1st by just editing the language you use.
The specs are dispersed over several files tho, so depends what you wanna do. Maybe you just need to include a copy of a particular language_number file, with the edit as below.
Once found edit the pure text behind the label, change it to your liking, but leave the label intact.
Example for Tank_School, in English_7
spec_tank_school_title = Tank School
spec_tank_school_descr = Extensive training programs for tank crews and commanders allow them to become more proficient at gunnery, communications, maneuvers, and tactical decision making.
spec_tank_school_effect = • Newly purchased tanks start with 1 experience star
Edit the parts behind the =
