That list does screw over U Boat lists, problem is, it in turn gets screwed over by PalpAces. I believe that's why it doesn't see a lot of tournament scene maybe. Putting all your eggs into one basket to fight a list you may not even see.Doomshuttle still sees a lot of use.
I think 4 x Gamma Squadron Veterans with Plasma Torpedoes, Extra Munitions, Deadeye and Guidance Chips could ruin a lot of Contracted Scouts days. Could even switch Deadeye out for Crackshot
It doesn't ser a lot of tournament play because Imperial Veterans still isn't on sale yet everywhere.
And if three Scouts with munitions and Deadeye work against PalpAces, then four Bombers with munitions and Deadeye should work pretty well too.