Of the possible enemies of Germany, by the far the most tricky to defeat are probably US. One possibility to atleast do some damage to US would be the american bomber.



The american bomber is a strategic bomber that have the range to reach US industry from Europe. We know that the variant system allow us to create strategic bomber with a focus on range but how far we can push this is yet to be revealed maybe even 1936 strategic bomber can be american bombers, the strategy depend on that an american bomber can be created rather early.



US will probably not expect strategic bombers to strike it and thus will go for an centralized industry which is very weak against strategic bombers and also have very little anti aircraft batteries to defend its industry. So even strategic bombers with weak payloads, which is likely with the american bomber given the focus on range can do quite some damage.



You will wan't the american bomber ready before the war with US because its military industry will be weak, later on US may have built to many fighters that can destroy the vulnerable bombers before they can do damage. If you can have several thousends of american bombers and launch them on the day of the war you can probably do an enormous amount of damage on the american industry setting the americans back a year or more from continous strategic bombings, destroying its national unity.



Naturaly if you play US you should always have this strategy in mind as it can be used against you, the importance is to use espionage to know if an possible enemy do have an american bomber in production. Building strong anti aircraft batteries is a very good idea, a few less factories for much needed safety is a much better trade then having to rebuild half your industry. Buildings fighters with your limited military industry is also a good idea.