Call of Duty 4: Modern Warfare [BLUS30072]

Also a Tip, if you are playing 4 player splitscreen set either one of the following settings:

Disable vertex cache=On
Disables the vertex cache. Might resolve missing or flickering graphics output. May degrade performance.

Or

Multithreaded RSX=On
Offloads some RSX operations to a secondary thread.
May improve performance for some high-core processors. May cause slowdown in some situations due to the extra worker thread load.

Either one of these settings will prevent flikkering and rendering issue with splitscreen.