I get kicked back to the dash after launching RTCoD_SP_Launcher.xex. I also seem to have a different version than both of you, don't know what you use to find out but I used abgx and it reports
XEX Media ID: D35CA3715E9C7357D662964C-2AD7FA3A
Region Code: 0x00FF00FF
PAL
NTSC/U