《使命召唤7：黑色行动》官方发布更新档

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刚刚约8点多官方放出第一次更新档案，大小约5.1MB。
凌晨时放出第二个更新档案，单机为7.6MB多人为8.0MB，没看见官方关于修改的文章。
也还没进行测试，等等附上测试结果，
如果看不到更新请点"右键->内容->本机档案->确认游戏快取完整性"，STEAM就会出现下载了。

下面是官方放出的暂时解法，不一定有效，除了第三点前面都是屁话。

For all the PC players out there, we have a few tips and tweaks that should help you get the most out of your PC performance while we await a patch that Treyarch is in the process of developing and pushing out.
The following tip was submitted to us by a member of the staff over at Curse.
Here are a few tweaks that will help you a lot:
Install latest directx version (this helped the most) – you can grab that here.

Install new graphics card drivers (ATI and Nvidia)
Make sure to allow Black Ops to use multi cores: go to your steam folder, which was Local DisKSteamsteamappscommoncall of duty black opsplayers for me. This may vary for you, however. Search for “seta r_multithreaded_device 0″ and change it to “seta r_multithreaded_device 1″. Do this for singleplayer and multiplayer.

We hope that this helps increase your PC performance while we wait for Treyarch to get that sorted out for us. We know they are working hard on that for us, but we'd like to give you the best game you can have while we wait .
Good luck and feel free to let us know in the comments or over at the forum how this worked for you, and don't hesitate to throw any more tips and tweaks out there for the PC community.

1.安装最新的Directx(这个帮助最大)
2.安装最新的显示卡驱动程式。
3.进入steam资料夹，找到player文件夹下的config.cfg(X:SteamSteamAppscommoncall of duty black opsplayers 就是这个档案，有两个，后面有MP的是连线，都要更改。)，用笔记本打开，查找seta r_multithreaded_device并把后面的0改成1 （允许游戏使用多核心处理）

原帖地址：http://www.gamersky.com/news/201011/166552.shtml