There are of course many, many more assets available (to both sides) to aid situational awareness. If you were loking at this realistically and not purely within the confines of a hypothetical "wargame" the Russians would probably pinpoint the position of the French task force before or coincidentaly with the French couter-detection, but the Russian advantage in serious long range missile fire would most likely eliminate the CdG as a threat well before aircraft became relevant.
