Sometimes when I write about things and situations I use the CIA nomenclature method. That's my inside joke. But actually it's pretty handy because you can codename situations, people or groups of people in a manner that remains structurally clear because of the nomenclature, without giving an actual significant name.
Like, a situation can be named after the ways operations are named. Like noun + adjective. Green bazar. Standing cat. You can generate these and nauseam and I'm pretty sure you can find online generators if you want to remain absolutely generic.
And give prefixes according to the status of each person. CX something, CX that, mk this, mk that.
If you have a lot of intervenants and don't want to get confused with all the first letters, which actually aren't very good at masking names if someone is willing to confirm your identity, a nomenclature system would be my way to go. The CIA one already did exist so I just adapted it, but you can have your own way of doing it.
Just an idea!