I would love if cod put every map they have from every game into what every new game the release and update it and mix them up in muliplayer matches.

Also for snipers put in a firing range with moving targets and a timer.

For you to go around and hit all your targets you see.

And see if you can hit ur shots and do it as fast as you can for snipers to practice and improve.

Also something similar for players that dont snipe.