I'm sure it would be great to add quests to the game, in which for killing 200 people with headshots in so much time, you get 10K or free upgrades. For doing 500 kills with knife per month, you get 20K or the same but with weapons and game strategies. On the other hand, not only increase or decrease the KDR, but also have a scoreboard of won and lost games. what do you think?