will only take ND 5 mins max and cost them nothing.
the idea: lock all the playlists except for the "all competitive playlist"
(all the good modes are here) - it would increase the players per playlists since there would be only one available (and all the popular playlists are in "all competitive" so it would suite everyone - i.e. there would be around 14/15k players in this one playlist instead of divided them over all the game modes (even though there are currently only 3 playlists that you will every find a game in - i.e. deathmatch, plunder, objective, and thats only if your lucky. would be much more variety if there was only the one playlist)
therefore = better matchmaking, less lag and more game mode variety