The Free XP to Crew XP conversion event is has been running since July, but will soon be expiring on 1st September at 2pm UTC+8. Feel free to make sure to use this opportunity to the fullest!
If you open the Personal File of any tanker in your service, you will notice that a new button appeared on the UI, called “Increase:”
If you click on it, a special menu will pop up, in which you can determine the level of training you want to conduct using your Free XP for that particular tanker, and see how much of the Free XP the process will convert. After that, just click on the Exchange button and voila – your tanker’s skill/perk level is now increased:
Are your crews combat ready, Commanders?