For completionists, Peace Walker offers a challenging set of achievements and trophies. Many are tied to:
- Story Progression: Completing main missions.
- S-Ranks: Achieving S-rank on all Main Ops and Extra Ops. This requires non-lethal play, fast completion times, and minimal alerts.
- Mother Base Development: Reaching max level for all Mother Base departments.
- Weapon & Item Development: Developing all weapons and items.
- Collectibles: Finding all blueprints, cassette tapes, and MSF emblems.
- Recruitment: Recruiting a certain number of soldiers or specific legendary soldiers.
- Co-op Play: Completing missions in co-op.
Aiming for 100% completion will require significant dedication to both the main story and all side activities. Prioritize developing your R&D team early to unlock all weapons, and constantly recruit high-rank soldiers to boost your Mother Base. Replaying missions for S-ranks is a core part of the endgame. Good luck, Big Boss!