And let's have them show on radar for 200 miles away (8 sectors, basically the entire map) because historically they were not the stealth weapons they are used as in AH. In AH they pop at the edge of radar and bomb the field before fighters can even get near to them, and get out without a scratch most of the time.
Historically they were known well in advance and fighters had half an hour to climb up to them and engage them.
So, until we know where bombers are IN ADVANCE, let's not talk about historical accuracy. How they are used in AH is anything but historically accurate.