here's an idea for making people stick a bit more with QL:

based on the stats of each player (or enabled on certain servers similar to the pro-servers), they get HUD elements that act as pointers for their game.

as they progress and climb the ladder (accuracy, wins etc.) these HUD elements are deactivated one by one (with the assumption they learned something).

these HUD elements could be:
- powerup timers
- map overlay highlighting shortest path to health/armor
- map overlay highlighting flag position/team mates (for team modes)
something like that

DM formula needs to be reinvented with some pointers for noobs.. they can't really improve or enjoy the game as it is.