FAST-VAL : Relationships Among Casualties, Suppression, and the Performance of Company-Size Units.

by S. G. Spring, S. H. Miller

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Describes the secondary effects, as input to FAST-VAL simulations, of casualties, equipment losses, and fire exchange on the performance of individual combat troops. These effects--including diversion of survivors, suppression, and loss of leadership and cohesion--are calculated in terms of break and stall levels, company effectiveness, weapon-crew effectiveness, suppression of fire, movement rate, suppression of mobility, and hand-to-hand combat performance. In a FAST-VAL simulation, the percentage of surviving effective riflemen is computed as a function of the preplanned rate of fire, reserve-commitment policy, cumulative casualties, and suppression. An attacking company breaks when it has sustained 30 percent casualties; a defending company, 50 percent. The artillery, mortar, and machine-gun rates of fire are computed separately. An attacking company's forward movement ceases at 23 percent casualties; an attacking armored unit stalls with 70 percent vehicle losses. Discussion includes detailed computations for deriving the percentage of riflemen still effective. 78 pp. Ref.

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