please watch http://www.youtube.com/watch?v=ShTLsbFhuak
nkTJH (the user) in this thread:
https://forums.halo.xbox.com/yaf_postst93471_Going-to-buy-Halo-2-PC-2morrow.aspx
gave us information that says H2V is going (service ending for it)… Best if they played Kai or Connect because it’s unlikely to Microsoft would shut them down.
Either that or wait for Halo 2 to come back on XBL in 2014 (which is a prediction).