Each game turn,
which represents fifteen minutes of real battle action, is sub-divided into
the following phases: Each phase is sequential such that engineering should
be performed before movement, which is before fire action and so on.
During this phase available combat units can engage in light field engineering tasks, which might include demolition, light construction and incendiary action. Units that perform engineering tasks may be prohibited from formation changes and fire action, and may typically incur fatigue loss.