343 has the daily win system where everyday you get a req pack for winning WZFF, Warzone, and arena. They have RP bonus and XP bo us you can use to earn more but it’s very random at times. I think they should bring back daily challenges and weekly challenges and maybe those monthly challenges that was in halo 4. i found this a faster way to rank up and you were sure you get that amount of XP to rank and buy armor
Not possible in Halo 5’s life cycle, but it is something the team are interested in bringing back for future titles. I’d love to see these make a return as well 