If they're not communicating, how are they sending back lots of data?

I presume these are surveillance drones and are programmed to loop back to origin

Surveillance gathered by an completely autonomous drone with no outside data, stationed far enough away to require refueling, close enough to enemy operations to be useful, that then needs to make its way back to origin, intact, through hostile territory, quickly enough for the gathered information to be useful, seems like a preeeetty big lift. Something a startup would promise to tackle with a star team of technologists over the course of like 10 years? Sure. Something they’d have designed within the past, like, year while getting shot at? I’d have to see that believe it.