I forget the AI ratio for artillery and armour but I remember it being done
not on a 1 to 1 basis, the reason was to cut down on placing too many AI objects and causing stutters from the CPU calculations.
This was a long time ago when systems were 16/32/64mb GPU and processors were @ 1500- 1800 mhz but don't quote me on exact numbers here
1 tank = 4
1 AAA = 3
4 AI Bombers = 8
Oleg said regarding bombers the AI capability was to simulate you attacking a larger formation with half the aircraft, again don't quote me directly as this was along time ago.
So regarding tanks and artillery and AI behaviour it might be the TD.DT guys can "officially" do something.