Here are B-25s on Borneo. You can see in the first sequence how the bomb doors are open and what is referred to a "Stick of Bombs" in the low-level add on is dropped. Here you can see several more than 4 which is the limit in the add-on. I'd like to change it but to make it easier to handle in the game I felt that I had to set this limit. When the doors have been closed, you can see a sequence of a tail gunner firing strafing the ground.
At 2.44 you see a pair of bombs and soon there after two more bombs dropped. No explosions are seen from these so I am sure that they have a delayed fuse. You also see the shell casings fall from the tail guns. The gunner is strafing during the entire sequence.
At 5.11 four bombs a dropped on a building which appears a few second later.
Skip bombing in Georgia: