Hi Rhino Bones, if you eliminate the custom units there will be no Bombur role in this mod
As a whole, most players are happy with the custom units, they add some realistic flavor to the game, it´s might better to say that "our force of Bf-109F´s achieved a 5:1 kill rate against enemy Hurricanes" than to say "Our Fighter V´s achieved a 5:1 kill rate against enemy Fighter III".
It also forces the players, to some extent, to doctrinal constraints of the involved nations. Take for instance Japan, which developed lots of fragile, long range two engine bombers that were deadly against unprotected ships but took horrendous losses against determined fighter opposition, while the USA didn´t use their medium bombers against ships (althought skip bombing against small warships and transports is represented in the game). The Soviets will be able to deploy great numbers of cheap and very effective medium taks against more sophisticated German designs. The USA will do the job with mediocre fighters until the 6th generation, and after that hey will have the finest fighters in the game. Some nations will struggle to create effective night fighters, while the fragile British strategic bombers can be used both in daylight and night raids, but they will suffer in the first case.
This said, I could have created a system where the player is free to develop generic, but variable equipment according to certain doctrine choices. To some extent we tried to do this in our American Civil War scenario. I´m not completely happy with the results.