Your saved progress
ARC Mission Control is an independent fan tracker. Quest, workshop and material data are shared; your campaign progress is personal.
Guest progress
When you use the tracker as a guest, your completed quests, objective checks, current stash quantities, workshop levels, focused upgrades, material spending records, and deployments are saved in your browser. They remain on that device. Clearing browser data removes them.
Google account saves
When Google sign-in is connected, Firebase Authentication handles your sign-in. The tracker does not receive your Google password or request access to Gmail, Drive, or contacts. Your display name is used to label the account in the tracker.
Your campaign progress is stored in Google Cloud Firestore under your Firebase user ID. The supplied database rules permit a signed-in Google user to read and update only their own progress. Guest progress is imported only when you choose to replace the account save.
Sync and backups
The tracker keeps a local recovery copy for your signed-in account. If another device has a newer save, you choose which copy to keep. Use the tracker guide to download a progress backup. Signing out returns to the guest campaign on that browser.
Third-party services
Google processes authentication and database requests under its own policies when these features are configured. The site also requests its fonts from Google Fonts. The site hosting service may process standard access logs. This tracker does not include analytics or advertising code.
Updated October 6, 2026. Google sign-in and cloud saves are connected through the site owner’s Firebase project.