They also wear black gloves, black and gray shoulder pads (which include small, light gray rectangular pouches with the word 'SD' on them, which presumably stands for 'Security Department'), black combat boots, and gray elbow and kneepads (the latter most likely being integrated onto the bodysuit). They wear black balaclavas and a black riot helmet with a yellow visor, obscuring any facial detail. Their vest also has an armor panel for protecting the pelvis attached to it.
The guards wear a white, full-body suit with a black tactical vest overlapping the torso, which appears to have three pouches mounted on for storage reasons (most likely being the magazines for their standard-issue firearm). Thus far, there are thirteen guards (excluding a few dead guards that appear around the site, often inside inaccessible areas) that can be encountered in the game.
The guards act as defense against possible containment breaches, and to ensure that Class-D personnel comply with orders and do not attempt to escape.
