

This chance is greatly improved by having Radio researched, by division speed, doctrine tech, and having a signals company attached to the division. The base chance to join is only 2% per hour (so mean time to join is about 35 hours). Units in reserve have a chance to join combat every hour as long as there is combat width available. While in reserve, these units do not contribute to the battle in any way, do not regain organization and do not increase their entrenchment or preparation bonuses. The combat width penalty is calculated as 2 * (total_width - battle_width) / battle_width, so this shows that in a 80-width battle, it is possible to have a 93 width (penalty of 32.5%), but not a hypothetical width of 94 (penalty of 35%).ĭivisions that do not fit the combat width or that join the combat after it has already started end up in reserves. The Vast Offensives and Human Wave Offensive technologies from mutually exclusive branches of the Mass Assault doctrine tree reduce the width of ordinary infantry battalions by 0.4, meaning 25% more infantry battalions can fit in the same infantry frontage.ĭivisions will be added from the reserve unless the combat width penalty exceeds 33%. Support companies occupy no combat width. Infantry, (including motorized, mechanized and special forces), tank and tank destroyer battalions have a combat width of 2, artillery and self-propelled gun (SPG) battalions have a combat width of 3 and anti-tank, anti-air and self-propelled anti-air battalions have a combat width of 1. The combat width of a division is the sum of the widths of the battalions it contains. Base battlefield width for combat is 80, where additional directions bring 40 extra per direction. Width is also affected by certain combat tactics. The available width of the combat is increased when attacks on the province come from multiple directions, so tactical flanking is needed to leverage a numerical advantage if the battlefield width is a limiting factor.

The combat widths of each division in a battle are added together to determine how many of those divisions will fit into the width of the frontline and fight. Tactics are chosen at the start of combat and changed every 12 hours.
