If you're finding MOHAA a bit boring of late then maybe you're not playing it to it's capacity.
Here's some tips on what to do:
1) play FFA at least 30 mins before going to objective.
2) try roundbased games
3) play OMAHA (clanbase players often leave this out)
4) use a different weapon. (Axis rifle perhaps)
5) d/load custom maps.
6) join a friendly clan for internal clan competitions
7) Buy the expansion pack.