CBS is the ground model of the confederation of models. All elements of air-land battle including conventional and tactical nuclear combined arms warfare, indirect fire, close air support, battlefield air interdiction, airlift, maintenance, logistics, and medical operations. Ground representation generally to battalion level, but specialized units at platoon level and below. Air units to individual aircraft. Indirect fires are explicit.
Air defense is modeled.
Terrain effects and congestion affect ground movement. CBS 1.5.2 can handle between 15,000-20,000 units, depending on speed of computer used. No naval or amphibious play. Runs at multiples of wall clock time. Lanchester attrition may be deterministic or stochastic, Monte Carlo.