Hmm.. There were ‘balloon busters’ in WWI! What did they use?
The pilot who got this “kill” continues the legacy of Frank Luke but in the 21st Century.
I read about aces who attacked German Zeppelins over Britain. Apparently there observations balloons, that used hydrogen, and were vulnerable to incendiaries, once they were introduced. However, it was still dangerous, because of the risk of ground fire.