Only the mortar, the howitzer, the canon and the Big Bertha can bomb.
An artillery can bomb out of its field of sight and it is then useful to guide it thanks to an observer.
When bombing are performed, all the units (allied as enemy) are hit, as well as structures (roads, bridges, strongholds)!
If the mortar and the howitzer can hold of the strongholds, it is not the same for the canon and the Big Bertha.
The optimal distances for bombing are equivalent to the range of attack of the unit.
The inflicted damages and the range of bombing vary according to the type of the bombed unit.
It is possible to calculate the experience points when an attack or a bombing is performed.