Blueprints and schematics are vital for unlocking new weapons, items, and equipment for development at Mother Base. They are often found as glowing items in missions, dropped by specific enemies (especially vehicle commanders), or awarded for completing certain Extra Ops. Some are even hidden in obscure locations, requiring careful exploration.
When you find a blueprint, it will be automatically sent to your R&D team, making the corresponding item available for development (provided your R&D level is high enough and you have the necessary GMP and resources). Always keep an eye out for these valuable collectibles, as they are the key to expanding your arsenal and improving your combat effectiveness. Consult the 'Database' in Mother Base to see which blueprints you've collected and which items are available for development.