Please read this before you just add to the flood. Everyone already knows about the server issues. Here are a few things that you should know:
They are NOT down permanently. 343 would announce this, and it would be unlikely since it has been 2 months since back-compat, and the amount of people still playing it.
Your rank was NOT reverted. You may think you are able to do matchmaking, but its not actual matchmaking, its just with AI. That is why you cant get over 1000 credits or whatever.
So why can you see your stuff in the armory, but not in game? It all has to do with the servers. Your player data is stored client side, but the servers are not down, they are most likely malfunctioning. If the servers were completely down, we would probably see our stuff in-game, but the AI would still all be recruit, etc. So since we cant connect to the servers, properly, the server cant receive it, but it keeps trying to connect.
Don’t quote me on anything, and if you have anymore questions, feel free to comment. I will try to assist the 343 team on this one.