True, but if you know you're fighting in Florida and they have 3 radars... you probably don't need to load the two radars which are known to only exist in Alaska. The world is a big place with many kinds of radars. Or maybe, yesterday, you received new information about the three Florida radars. Wouldn't it be good to be able to bring that new information when you head out today?
You seem to be describing a circumstance in which no new information about the radar was available at the time the mission began. Regardless, would it not also be good to be able to record that new information so your friends can take advantage of it?