Worked Example: Secrets and Clues for Blades '68

I have been running Triangle Agency1 for the past year. This game requires Mission-focused prep: the players receive Missions from the Agency and then they perform those Missions. When I write a Triangle Agency Mission, I write dense interconnected Missions linked to a central Focus2; these Missions focus on detailed NPCs with a strong social context and easily-playable traits (along with more notional location keying). This detail gives Triangle Agency players lots of levers to pull when investigating Anomalous activity. However, I have a problem, and that problem is Blades '683. In Blades '68, the PCs exist in a tangled web of information and relationships. The focus of the game is action, not mystery. The information they gain, therefore, only matters if it relates to their course of action. In this context, prepping a dense mystery --- or even any particular location, NPC, or faction --- is often wasted effort. If that adventure element is not relevant to the crew's plans, why did…