There is already an event on this site. It does have about 9 or 10 confirmed though.
It will take about 1-2 weeks to hit General. Play Capture the Flag. Easy 500-1500 points per game.
For some ungodly reason there are ALOT of people who still play legit, and they will do all in their power to mess up your boosting. If they are killing the flag thrower, then the people on the catching team need to watch the map and make a wall around the thrower when the person gets near. This forces them to kill you first to kill the thrower. ALWAYS punish the people, it only takes 4 or 5 to get them kicked. Then you can boost without interruption.
Medic can be done while doing this, it cannot be team kills. Have the flag thrower shoot one of the catching team members and then the person going for medic can revive them. Ammo Supply is easy, have 2 guys catching shoot into the air and then you can throw an ammo can for them, they only have to shoot a few bullets. You have to throw the can a little bit away from them not directly on them, it will disapear. Victory medal is best done on WAR with a full boost team. First off, everyone on the capturing team will get the War achievement if they are part of capturing the last flag. Just have 1 team mate capture all the others and get at least 1 kill and they should get the victory medal. Do this till all have it.
Any questions just ask.
Good Luck.