updating the dashboard to fake an live server, doesn't help
the game has it''s own connection; it doesn't use the dashboard.
and "trail and error" is not very helpful because ALL data send over live is encrypted en if you tamper with it, it just ignores it.
and there is a "second" developer live network, called partnerNet, it's just like the "normal" live, but it's for developers.
developers have NO "live tamper tools".
only some systemlink tools, and "slow down" tools, that just slow down the packets, and not tamper with it.
if you want to make an live server, first thing to do is to recreate the kerberos key exchange that's used to give the encryption key used to the xbox ( that's diffrent every session), then you can make and edit, live packets