It’s easy to get the game to use the Hamachi adapter, which allows you to see other peoples games listed in the LAN browser but it still gives an error when you try to join the game.
Open up regedit, go to HKEY_CURRENT_USERS\Software\Classes\Software\Microsoft\XLive and make a new String Value named ConnectionOverride with a value of ’Hamachi’ (or whatever the name of your Hamachi adapter is). This will now cause all Live games to use Hamachi as the primary adapter (which can be confirmed by hitting Home while in game, and going down to options->network. It should tell you what network the game is currently using).
原作者malawar
方法2 （自己翻譯了下）
Open your network connections. 打開網路連結
2) right click on local area connection, click disable. (you will lose your connection) 關閉網路連結（你上網用那個）
3) open GoW. create a coop game. wait for the game to load. 進入遊戲，建服，等待遊戲載入完畢
4) once you are in the game, tab out and enable your network connection again. 切出桌面，打開網路連結
The person who is joining your game:
1) complete steps 1 and 2 重複 1 。 2 步驟
2) open GoW. go to the coop LAN browser. let it search for a game, it should say that it cant find any. 進入遊戲，刷新遊戲，發現找不到任何網路
3) tab out, enable your local area connection. refresh the server browser. 切出遊戲，打開網路連結
4) the game appears. 切迴游戲，可以找到網路了
此方法性質和第一個方法一致，都需要進一部破解，不過已經能找到對方網路了，期待更加高手的人能破解出來