Want to know what's quicker? 4 on 4 to 7 points. Take turns running the flag. 1 game 1 team gets all their flags the next game the other team does. The score will be 7-0, 0-7, 7-0, 0-7, etc. Back n forth. You'll get like 150exp or more every 2 minutes.
There is a trick with the spy hunt. Start a room and make it spy hunt but put friendly fire on and don't have anyone touch any intel. Then you just have to wait till time expires. If you have time set at 16 min then you get 575exp and 435gp. I also think I forgot to mention that you and your friends can run around and kill eachother to make it more realistic.