GPS/maps degraded or offline. Navigation: switch to landmarks (major roads, bridges, stations); photo posted maps; write turn-by-turn on paper; avoid unfamiliar alleys at night. Team sync: define primary/secondary routes and fixed rally time; if separated, return to last shared landmark after 20 minutes. Safety: prefer well-lit, populated paths; avoid flooded areas, smoky tunnels, unstable structures. Comms: SMS landmark text when possible; conserve battery for checkpoints. Japan: 110/119, station staff/ward offices for directions. Start with SAFE-BRIEF; end with emergency-number reminder.
