Systems are provided for training two groups of police officers equipped with state of the art technologies. In one embodiment, a system is provided. The system includes a server comprising a virtual machine, and a mobile device held by an officer, wherein the officer belongs to a first group. The system further includes an enemy mobile device held by an officer belonging to a second group, wherein the second group is an enemy group of the first group. The system further includes a friendly mobile device held by another officer belong to the first group.
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