Overview
During the initial outbreak, martial law was instated causing the military to set blockades on main highways to ensure the safety of any leaving civilians. It is likely that the United States Military, as well as the rest of the world's military forces, fell apart and scattered. The troops organized by FEDRA were deployed to massive quarantine zones. Later, the Air Force carpet bombed the surrounding areas.
Ten years later, in 2024, they currently hold quarantine zones in the remains of major cities. The military aims to contain all uninfected persons in these quarantine zones and makes sure no one leaves. There are regular checkpoints throughout these zones where the population is inspected for signs of the infection by a handheld scanning device. If tested positive, the individual is immediately killed.
They also have vehicle patrols that go outside the walls to search for anything worth taking. The vehicles, obviously, have working batteries which indicates that the military has at least some industrial capacity; given it is standard policy for Survivors to be captured, it is possible the military uses prisoners as labor to allow troops to focus on their duties.
Equipment
Soldiers wear gas masks at all times to protect against spores. While they still wear bulletproof vests and use handguns and assault rifles, they also wear riot helmets that cover their faces and protect them from Infected attacks. They also carry handheld scanners to test survivors for infection.
They wear police-style riot gear likely because it is easier and safer to scavenge equipment from police stations in the Quarantine Zones rather than to go outside the perimeter and into overrun military bases. Additionally, some soldiers wear a hat instead of a helmet and mask, in low-risk areas, suggesting the military wisely reserves combat equipment for those troops likely to be in high-risk situations.
The Military still mounts occasional patrols through the areas outside of the Quarantine Zones to search for anything useful. They still make use of Humvees, some mounting what appear to be .50 caliber machine guns, and short-bodied variations of M35 trucks. No one knows where they get fuel for these vehicles, but it is assumed that they scavenge it from abandoned vehicles. Another possibility might be that they've figured out how to produce biofuels to supplement dwindling petroleum reserves.
No one knows if the military can still make use of larger land vehicles or aircraft. None have been seen near quarantine zones since their establishment since the carpet bombing.
Combat Strategy
Because they have access to assault rifles and body armor, they are a very difficult foe. Because Survivors lack powerful guns and ammunition, it is advised not to engage in a firefight with them as it will most certainly get you killed. It is best to either stealth kill them or simply sneak past them, however, should you choose to engage, the rewards would include valuable guns, ammo, and gear.
Weapons: ALL
Weapons: ALL