- Two Man Gameplay - Co-op is no longer a mode, it's the game. Players must undertake TWO man mission using TWO man strategies and tactics to ultimately create a TWO man advantage that no enemy can withstand.
- Partner AI - ARMY OF TWO delivers intelligent partner AI (PAI) that will interact, adapt, collaborate and learn from their human partner. The PAI will also react and adjust to the gamer's ability and how they play the game by taking the lead or following, driving strategy or taking orders. It is the dream of the human machine.
- Customizable Weapons - Customize and upgrade dozens of deadly weapons and share them with your partner off or online.
- Dynamic Environments - EA Montreal's proprietary technology called the Inertia Engine delivers realistic character and environmental effects including fluid dynamics that showcase an open-ocean water-wave simulation as well as physics based animations.
- Contemporary Storyline Ripped from the Headlines - ARMY OF TWO will captivate gamers with a politically charged storyline, centering on the impact and ethical issues of Private Military Corporations.
- Online Gameplay - ARMY OF TWO redefines TWO MAN online gameplay with players seamlessly moving from PAI to live players as they make their way through the game.