If you have any interest in playing competitive custom 4v4s/FFAs, send a msg. I'm part of a community that keeps H2 alive. We do not play MCC, we play strictly H2PC, Halo2 Project Cartographer.
H2PC is as close to OG Halo as we can get. The community is full of the best players on H2, including former pros. So, if you're looking to play Halo 2, MLG settings, send a msg.