New, Shiny Destroyers

The destroyers are the big heavy hitters of your fleet. Their job is to throw out as many punches as possible without being hit themselves

The US ones above are based off of a .50 cal round and an american two-pronged plug, respectively.

The soviet ones below, on the other hand, are meant to look like a vodka bottle (how original) and a nice little Ming dynasty vase. 

Both of these sets of concepts use engines stolen from an earlier piece.