The Russian Tupolev TB-3.
Developed in 1930, but used effectively by the soviets in WW2. Over 800 built.
It has a max speed of around 210, so its on the slower side compared to other bombers, but I'm sure that it could get to places in a decent amount of time.
It can have a defensive armament of anywhere from 5 to 8 7.62mm DA machine guns. So it is actually on the more defended side of our bombers so far.
Up to 2000Kgs (4,400lbs) of bombs, so its got a nice bomb load.
SpecialtyThe TB-3 was used to paradrop troops when it wasnt on a bombing mission. So we can have an aircraft that can be used for BOTH city/field bombing, AND to paradrop troops.

How it might look in game...


TB-3 dropping troops...