The CSB is the most recent arrival to the Black Mountain Complex. They are tasked with keeping the USRF in check, and ensuring that the rules of war are followed. Furthermore, they will do anything they can to ensure every service member's compliance with the Regime. On Sunrise, there are both Military Police and the dreaded External Security Service. They are here to stay.
The USRF Lakeside Division has units from all five service branches of the NEU Armed Forces serving under it. These units work tirelessly to ensure that the Lakeside Division's needs are met. Whether that be the Reclamation Army providing grunts for a ground mission, or the Crisis Corps clearing an Eldritch nest, they always work as a team, regardless of what branch they serve in.
The Hilltop Group was infamous for its exploits on the battlefield, doing all the dirty work that the previous Regime dared not do. At their peak, they spanned from Cuba to the Arctic. Now, after the 2164 Constitutional Crisis, they have been outlawed. The Hilltop Group's main priority now is to survive on Sunrise, and with them being striking a small deal with the Lakeside Division, war is on the horizon.