Here is an example, say you are attacking with 1 ground unit, 1 fighter and 1 bomber. After the first round of combat the ground unit is destroyed, but the fighter and bomber remain. In the second round of combat, is the bomber allowed to participate as fodder for the fighter, even though the HR does not allow the bomber itself continue attacking? Or is the bomber considered no longer part of the fight, ie it is not longer involved in the combat cannot take any enemy hits?
For simplicity, I was thinking not to put any further restrictions on a combat once it started. The HR would really just restrict the number of bombers that one can bring into a battle, but once the battle started it would follow OOB rules. So bombers can be taken as casualties at any chosen time and can also continue battle even if all land units are dead already. This is mostly to allow game play with tripleA without any modifications.
But with little modifications to the game xml file, one can modify bombers such that their attack value is 0, but if they are combined with any land unit or a warship in 1:1 ratio they get +4 attack bonus. It is much more realistic this way and gives space for interesting tactical decisions. Suddenly taking fighters as casualties before last few armors and artilleries supported by bombers is better for maximizing attack power. One would still be allowed to take bombers as casualties at any chosen time, I think that is ok. I will attach an xml file here soon.
Here https://www.dropbox.com/s/2mbsptvi4jxi1ut/World War II Bombers HR.zip?dl=0 you can download the map with bombers having attack value of 0, but if paired with any land unit or a warship* in 1:1 ratio their attack increases to 4. Just unzip the downloaded zip file into maps subfolder of your tripleA installation. Once you launch tripleA select “World War II Global 1940 2nd Ed. - House Ruled Bombers” from the list of available games. I would be interested in any feedback if you try it. You can PM me or post here.
I excluded carriers here, as carriers have attack value of 0 themselves so it would felt weird if they could boost attack of bombers.