To achieve an S-rank, focus on speed, stealth, and minimizing alerts. Completing missions quickly is the most significant factor. Avoid killing enemies if possible; non-lethal takedowns and extractions yield more points. Do not trigger Reflex Mode, and avoid being detected. Skipping cutscenes also contributes to a faster completion time. Use your buddies strategically to clear paths or distract enemies. Practice specific routes and loadouts for each mission to optimize your run.
