Thompson is an unlockable Assault Weapon. It has the unique ability in its class of firing Armor-Piercing Shells, which makes the enemies wearing Bulletproof Vests and Full Metal Balaclavas feel like they're wasting useful Equipment slots. It can replace Armor-Piercing Shells for more useful pieces of equipment.
- Visually resembles one of the later models of its real-life counterpart, which is actually a submachine gun.
- Also known as the "Tommy gun". This weapon frequently appears in gangster fiction (e.g. Dick Tracy ). In reality, the Thompson has been used by soldiers, criminals, police and civilians alike.
- It's not the only early 20th century weapon seen in the game, which could probably mean that one of initial concepts was placed in a corresponding era, hence some of the stylistic elements, but then they revoked it in favor of the Modern era, giving a strange looking visual mix.