Equipment swaps and javelin upgrades can be done at the Forge once guns and gear are found in the world. As a pilot levels up, more javelin customization slots will unlock.
Equipping higher-level items will raise your javelin's power level, which is reflected as a rarity level. Higher-level suits find rare and powerful items more often, and can tackle missions at higher difficulty levels.
Additional Notes and Trivia
To see the main pages that aren’t a part of the Cortex but a part of the Lore, see below: