BF4 Missions
For those that don't know, in BF4 you can create missions, like Best Engineer or Vehicle Destroyer. They'll last for 48 hours or until everyone in the mission has accepted and completed the requisite number of maps or tries, etc. It might be interesting and fun for a Fireteam leader to set a mission for all of the fireteam members to compete in. It would require all of the fireteam to be friends on Battlelog. And you can only have a maximum of 5 people participating in a single mission.
One of the ways that I like to compete in missions is to allow an infinite number of tries on all maps for the 48 hours. Everyone's best score/kills over that time will be kept and compared when it's done.
There's not much of a reward though ... if you complete 20 missions of a particular type, like "Best Assault", you'll get a dog tag.
Just an idea ... it doesn't have to go anywhere