Got it to work after a lot of fails. So I couldn't get it to play on usb loader gx. The screen remained stuck on the loading screen. So i tried
wii flow. I am running cios 250. I messed around with the settings for black ops on wii flow. On video I used ntsc, turned vipatch on, ios 250 and patch video mode normal. I dunno if you have to do all that i just kept messing with the settings. Then I coudn't connect to online multiplayer. It showed on my first profile the enabling
voice chat when you go to log in online. But the screen remained stuck. So I created the 2 profiles n tried again. But still wouldnt connect. It didnt even show the chat thing for the second profile. So after deleting and making profiles numerous times on the main screen, still nothing. I entered the mulitiplayer section with just my first profile, went down to the section profile, created a second profile there. And to my surprise it showed the chat thing on the second profile and allowed me to connect to the mulitplayer games
Hope this helps!!