User blog comment:Flamesword300/COD 2014 idea- Filter matchmaking/@comment-1187559-20140429193434

That's not really "Filtering matchmaking" what you're suggesting is customised lobbies. The only real thing you suggested that is "Filtering" is choosing to join a game that's in the lobby or has started. Aside from that everything you've listed would require changing the rules withing the lobby itself, and doesn't really "filter" anything.