Simple All FWC members are deep within enemy territory, throwing their lives away at the cost of extreme damage to the enemy, before they have a chance to reach the besieged city. All NM members are the defence force, doing heavy clean-up duty in the breached city as the enemy hordes still manage to pour in, despite FWC's best efforts. All DO members are working on Plan B. They are in charge of protecting and evacuating Civilian elements, as well as valuable data and resources, to secure locations among the stars. Should NM and FWC fail to hold the City, DO shall be responsible to find humanity their new home.