For the ultimate challenge, strive for a 100% stealth rating on every mission. This means no detections, no alarms, and often, no lethal force (unless explicitly required). It demands meticulous planning, perfect execution, and a deep understanding of enemy patrol patterns and gadget utility. Replaying missions with this goal in mind reveals hidden paths and advanced stealth techniques. It's a true test of a Splinter Cell operative's skill and patience, often unlocking special achievements or bonus content.
