Yeah, and they don't support it because companies want to be d*cks and force you to pay to play with other people, hence why as you said, PC still uses it most. I mean MCC "supports" it but I'm pretty sure that you still need a Live account to actually use it.
The other issue too is that if you want to do eSports (which is big business for Halo) I'd think that LAN would almost be a requirement. I mean if you REQUIRE connecting to a separate gaming server, then you have added lag issues, not to mention you're open to possibly the servers being hacked or DDoSed during it, which would knock it offline. I don't know all the specifics for how these things are set up and I'm sure they have some sort of infrastructure where their connection to the servers are more stable than what I'm paying $60 a month for from my house, but LAN coding is likely so old and easy to implement that to NOT have it isn't for any sort of player benefit.
The other issue too is that if you want to do eSports (which is big business for Halo) I'd think that LAN would almost be a requirement. I mean if you REQUIRE connecting to a separate gaming server, then you have added lag issues, not to mention you're open to possibly the servers being hacked or DDoSed during it, which would knock it offline. I don't know all the specifics for how these things are set up and I'm sure they have some sort of infrastructure where their connection to the servers are more stable than what I'm paying $60 a month for from my house, but LAN coding is likely so old and easy to implement that to NOT have it isn't for any sort of player benefit.