Also when I look at my stats on the Halo app, it says that I have 4/5 bonus objectives on "A New Enemy". As far as I can tell there are only 4.
Recruit - Bronze
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.
Awarded to players of Halo: Fireteam Raven.