Aden 25mm
I photographed the whole sorry development of the 25mm.
The idea was it would fire bursts a lot faster than the untrendy 30mm.
The HUD had a burst counter / limiter which I thought a good idea.
Snag was the metallurgy wasn't up to the ( flawed ) theory, so it fired it's own innards along with the shell - they didn't develop the gatling gun all those years ago for no reason - barrel cooling .
Dunsfold armoury tried valiantly but the thing was a lemon.
I completely agree the GAU-12 should be fitted, but that would be admitting to a cock-up, wouldn't it ?!
The 'gun pods' were used for ECM gear for a while, but now that seems to have gone, leaving just strakes.