Just a heads up-if you are not already aware, the community file browser and personal file share are not syncing since Saturday evening (Aug 23-US-East Coast) at least for my screenshots. I downloaded two new screenshots Sunday morning and it is not showing up on community, but is the latest in my personal, as well as the like counts are different from personal Vs community (more in my personal than community (community appears to be static at the Saturday night count)
Edit:
Hope this is ok, Discussion from Halo 4 forum:
https://forums.halowaypoint.com/yaf_postsm3024873_Halo-4-File-Browser--no-files-found.aspx#post3024873