As soon as the parts Uriel had asked from the army were finished, Cassandra set up a 'rescue team', though its true purpose was to explore the bayou and try to put an end to the cryptids siege on the city. Every city had their own version of the rangers to protect them from outside threats, but when it came to incursions the army was the one responsible since they had world wide resources at their disposal.
Whenever a city was in danger they dispatched a heavenly rank unit led by a colonel, along with several captains with their own ascended teams. And they would only be allowed to return to their home city until they either accomplish their mission as heroes or if they fall on the line of duty as a small urn containing ashes. This kind of mission usually lasted from six months up to two years, but Cassandra couldn't afford to be away from some for so long and the main reason for that was Luna.