Anyone tried this?
I'd be willing to give it a shot. Anyone interested?

I gave up trying. Nothing seemed to work with Hamachi. :(

Without the activision servers (which are shut down), you pretty much have to use IPX... so what you'll have to do is go into your network properties and install IPX/SPX on the hamachi connection. I'm not entirely sure this would work, it's just conjecture on my part.

Yeah, there's a whole separate thread about using kali, but kali costs 10 bucks, where hamachi is free.

I can't even host a game using Hamachi. Kali seems to work as far as hosting goes, but haven't been able to play a match yet.

I just tested, I'm able to host a game on hamachi but I wasn't able to see if anybody could join it (I have to go to work :P )
What you have to do is:
1) right click "My Network Places" and choose properties (or go into "Control Panel" and choose "Network Properties")
2) Pull down the "Advanced" menu and choose "Advanced settings"
3) Make sure on the "Adapters and Bindings" tab that "Hamachi" is at the top of the list. If it isn't, select it and use the green up arrow next to that window to move it to the top. Click "OK."
4) Back in the Network Connections window, right-click "Hamachi" and choose "Properties"
5) click "install..." and choose "protocol" and click "add..." then choose "NWLink IPX/SPX/NetBIOS Compatible Transport Protocol" and click "OK."
6) Click "OK" on Hamachi properties, then close the Network Connections window.
You should now be able to use IPX to host on hamachi. But like I said, I haven't been able to test it with somebody joining. There's a chance it might be really laggy, but who knows?