Im not sure if anyone takes the time but i know for a fact and its guarentee why Halo 2 was BIG as iT was ON multiplayer. Everyone had there invidual place going up and down the leaderboard every minute. You couldnt wait to go on Bungie to see how much progression you got on your bar to level up again. All i know is i hope they consider it because so far there doing amazing job with HALO 5! You would get HUGE FEEDBACK from everyone knowing there is a Leaderboard. Its what DRIVES players and teams to play game after game to just get to that next level. So addicting and fullfilling. H5 THE FUTURE btw im glad theres sprint makes gam more competive and over all intense fun experience. 
yeah I loved checking my stats and level progression on bungie.net. They need to bring back some of those aspects for H5
might not be exactly what you are wanting but here’s an update coming soon to the halo channel apps.
https://www.halowaypoint.com/en-us/community/blog-posts/community-update-prepare-to-launch