I mean there's some missiles that can be equipped with either type, such as the French mica and the Russian r27 but it's a swap not a both simultaneously, so unless there's some surface to air missile that does it than idk. Modern radar missiles can use the internal radar and the airplane radar for tracking, but I don't think that's what you meant.
so my source for the both types of missile tracking thing turned out to be a Quora ChatGPT answer lol, but i think they still train people to use both flares and chaff because you might be targeted by multiple hostiles (like several SAM batteries or multiple jets or a single jet launching multiple missiles) and most planes carry enough of both anyway
AFAIK plenty of modern 'fire and forget' missiles use both
I mean there's some missiles that can be equipped with either type, such as the French mica and the Russian r27 but it's a swap not a both simultaneously, so unless there's some surface to air missile that does it than idk. Modern radar missiles can use the internal radar and the airplane radar for tracking, but I don't think that's what you meant.
so my source for the both types of missile tracking thing turned out to be a Quora ChatGPT answer lol, but i think they still train people to use both flares and chaff because you might be targeted by multiple hostiles (like several SAM batteries or multiple jets or a single jet launching multiple missiles) and most planes carry enough of both anyway