[Mobhack]

Experience is the main determinant. There is no point in putting conscripts with 50 points of EXP on the task, they dont have a clue how to go about it.

Also, every army has its own inbuilt counter battery score, with the UK, USA and Germany etc scoring highest, little Ruritanians not so good. That specific data is not available to the end users. Those armies do better than the less technologically advanced ones. Same for MBT - USMC outscores Ugandans every time.

CB fire is just a case of leaving a long ranged and highly experienced battery idle and hoping that it spots an enemy off-map firer and smacks it. It also helps if a lot of enemy batteries are firing - e.g. when you are defending against a shed-load of enemy firers then your gunners will be in a target-rich environment.