I’ve been stuck in the fallback hoppers permanently since launch. I’ve seen the Halo 4 server is down message for the last week n a half, I haven’t even been able to load Spartan Ops for the whole time. I’ve done it all, reset router, modem: nothing. Installed disc 1 and disc 2 and nothing, deleted disc 2 and downloaded it from the marketplace and nothing. I got open nat and nothing. Cleared system cache and nothing. Last night i played 4 games of slayer with a friend. I got booted after every damn game we played. That was beyond annoying as hell. I haven’t been on at all today but im about to and if i see the Halo 4 server is down message this game gets taken back for a refund since it is a broken piece of -Yoink-. 
Thanks!