A-20...
It was called Havoc because trying to fly the things in formation caused havoc, they were notorious for having about the same level of pilot visibility as you'd have sitting in a cardboard box in a snowstorm. Certainly not Douglas's finest hour (still better than the Fairy Barracuda, it's party trick was dousing its pilots (in the face) with hydraulic fluid at such high pressures it knocked them unconscious).
You paraphrase FIAT they were both "designed by morons, built by peons".