Special Option Points
Each Campaign Map Sheet specifies the number of Special Option points
available. The SO points given to a Campaign are the total number available throughout the entire Campaign.
You only get one amount which has to last the entire campaign.
You can boost the SO points before you start the campaign by choosing to use crappy older planes (see the example Squadron Selection in the rules).
Always try to keep a few SO points available, because pilot losses and random events can cost SO and if you go below zero points, you automatically lose the game.