Yeah there are plenty. According to TrueAchievements there are 435 people that have gotten every MCC achievement. Including myself.

Slim Haley
Marine - Iron
I have been playing Halo since 2002. Halo: 3 and Halo: 2 are my favorite Halos.
Lieutenant
99 Members
Est. 10/19/2015
Made your first hot drop into HaloWaypoint.com
View your Service Record on the web.
Become a member of an active Spartan Company.
Awarded to players of Halo: Fireteam Raven.