Hi ,im new to the game and after reading all forums i gotto ask this:

How do i upgrade the abilities of my 3 main officers(WO,XO,CO)?

Finished the Total Germany,happy times and Mare Nostrum campains...only micro objective i didnt achieve was that Carrier kill in total germany.
Got plenty of renown and over 150 promotion points..playing as a noob with reality at 0% cause for me this game is new
Was able to upgrade the abilities of all other officers to max(complete),but 3 main officers..their abilities keep staying at level 1?.

Got the game patched to 1.2 without any mods installed(vanilla).
Is it possible to solve this problem without installing a mod?
greetings to all other Captains around here.