When you have finished all the silver packs, you'll know due to when you go to open one again, it will give you REQ points back instead of an unlock as you have none left to unlock :}
Recruit - Iron
Made your first hot drop into HaloWaypoint.com
Halo 5: Guardians MP Beta participant.
View your Service Record on the web.
Become a member of an active Spartan Company.