What is confirmed
The Roblox description says players earn credits and unlock more than 180 upgrades. It does not publish a full upgrade catalog, credit rewards per mission, exact prices, or a fastest-credit route. Treat any exact number beyond the public 180-plus count as unverified unless the current game displays it.
The public page also mentions bonus XP and credits for joining the developer group or inviting friends, and a weekend double-reward promotion. These offers may change; check the current official game page and in-game notices before relying on them.
Choose upgrades deliberately
Read the current in-game upgrade descriptions and compare the benefit with the way you play. Decide whether your next unlock supports your preferred aircraft role, mission objective, or team contribution. The listing does not identify a single optimal first purchase, so no fixed shopping order is presented here.
Keep notes on the visible cost, effect, and date/version if you are comparing builds. A screenshot of a current upgrade panel is stronger evidence than an older video. Avoid spending based on creator claims that cannot be reproduced in your own session.