Regarding the Corrosive power of shells as Storm mentioned, that's a thing that I won't put frwd to devs for the next patch
Well at least that a good idea for the next gen non-lethal super weapon.
But Chemical and kinetics E are the ones you usely talks abt in such a discussion
Here is another one of highly improbable kill rate in a E4 offline. I can assure you that those plane (AI) were maneouvring