This paper aims to analyse several parameters of the casualty evacuation system and their effects through the simulation platform. A discrete event simulation (DES) model is used for the analysis. Five scenarios contemplating different fleets' prerequisites for survival, ambulance allocation and casualty treatment allocation parameters are used to test the performance of the military evacuation system. The result shows that change in parameters such as ambulance return time, redeployment time, transport duration etc., effects the time of evacuation as well as the time of resuscitation and damage control surgery. The percentage of casualties that required damage control surgery that received it within the required time is, on average, 63.78 % and the waiting time for bed is 0 minutes. In order to facilitate the evacuation of combat casualties, this simulation model supports decision-making. This analysis can also be used to support the resource allocation of the military casualty evacuation system.