Before embarking in off-world missions, SD teams report to the Off-World Staging Area where each team’s locker room is located. The Delta Site's armoury is also located here, and when not in use all weapons need to be returned here and kept under lock and key. The base's logistics are administered from here by Major Dale Schreyer and his dedicated staff.

Within the Delta Site Command Bunker, the base's main briefing room is located, along with senior staff offices. Major General Frank Kepler (CO), Colonel Troy Loveridge (XO), Colonel Robert Walker (COO) and Lieutenant Colonel Ayden Leah (CPO) all hold offices here, along with the other off-world team leaders.

Located within the Delta Site's Base Services Building is the base's storage areas, water treatment plant, power distribution grid, and primary power generator - a Naqahdah generator. The backup generator, a conventional Earth built one, is located on the outskirts of the encampment. The base's autodestruct is also located here, and requires two officers ranked O-4 or higher to activate it.

As the most secure building in the entire base, the security complex is used to house and interrogate off-world prisoners and other persons of interest. Command Jerry Garcia, the base's Chief Security Officer, holds an office here.

The Delta Site is not only home to a large military force - some of the world's brightest scientific minds are part of the expedition team, including Doctor Cara Coyle (CSA), Doctor Beatrice Honicott (CCAA), Doctor Chris Hatfield (CRA) and Warrant Officer Class 1 Ashley Kale (CoC). Their mandate is to analyse any alien technology the expedition encounters and determine if it could be of use to Earth. The scientists and engineers also run a number of projects to backwards engineer alien technology, with varying degrees of success.

As the medical hub of the entire expedition, the base infirmary deals with all manner of injuries, from the minor to the life threatening. Under the guidance of Chief Medical Officer Major Will O'Malley, the highly trained team push their training and equipment to the limit on a daily basis, constantly furthering Earth's medical knowledge of alien species and illnesses.