i would go so far as to say almost every player (90%) pick one game mode they like and stick with it, only straying out for missions.
everyone who plays dirty bomb ive spoken to prefers objective over stopwatch or vice versa (everyone i know only plays CSGO for missions) and only plays those gamemode.
Whatever their reasons, if its the fact objectives are faster or stopwatch is longer/generally higher level players, they choose one and stick with it.
if there arent enough players to fill a handful of 24/7 stopwatch/objective servers, why are there different options in quick join to queue for?
There may not be enough to fill every map for all game modes, but all the servers are already 24/7 gamemode, the only thing that changes is the map
