I don't see a setting for it on the options menu, also some of the options I can't edit for some reason.
The problem isn't 'difficulty' it is lack of interaction, there is no craft to shoot down or intercept, it's just randomly my sub pen gets deleted or my radars get deleted, I also can't figure out what to research to do things. I need a user manual for this mod or some such, I was really enjoying it until random parts of my base started blowing up.