Do you have “Unspoken Directives”? Sort of campaign-wide truths that might be exploited to gain experience regardless of whether they are listed?
For instance, my players generally understand that these are always in play…
• If you find out your employer is doing something horrible, and you screw that up for them, mark XP. (and expect things to get interesting as that plays out.)
• If you screw things up for them in a way that they don’t realize it’s screwed up, and you can still technically finish the mission, mark another XP. (this is a rare reward for especially clever plans.)
Cool idea!