Combat is more focused on ranged combat than melee combat. The damage a unit takes is calculated with the following formula:
Accuracy and hit chances
Each ranged weapon has a certain accuracy that is affected by factors such as distance, cover, terrain levels and defensive buffs such as smoke screens. Based on accuracy an attack can hit a target for full damage, graze it for half damage or miss entirely based on the following percentages:
|Chance to hit||Chance to graze||Chance to miss|
Overwatch guards an arc of hexes in front of a unit, and the first enemy unit to act or move in one of those hexes will get shot at. Overwatch for ranged units is done on command while melee units are always on overwatch but only on hexes directly in front of them.
Overwatch can be removed by Staggering a unit. A unit can be staggered by explosives, melee attacks and high impact attacks. Staggering will also knock units out of guard mode and reduce their action points, limiting their options in their next turn. A unit Staggered enough times will not be able to act at all.
Each weapon group is dominated by a single damage channel but contains modules that allow changing into certain additional damage channels.