Systems (100) and methods (1300, 1400) for spontaneously configuring operations of a Computer Network (“CN”). The methods involve: configuring CN to operate in accordance with a first Mission Plan (“MP”); and detecting a reactive trigger event. The first MP specifies a manner in which an assigned value for an IDentity Parameter (“IDP”) is to be dynamically modified by a node (105-107, 113, 114) of CN. The reactive trigger event is a spontaneous event for causing a change to occur in relation to the dynamic modification of IDP. In response to the detection of the reactive trigger event, a second MP is selected. Thereafter, the operations of CN are automatically modified in accordance with the second MP plan such that IDP is dynamically modified in a manner that is different than that specified in the first MP.