We Are Legion is the first DLC for Terminator: Dark Fate - Defiance, a real-time strategy game. This add-on introduces a new single-player campaign where players command the Legion machine army. The campaign focuses on Legion's objective to eradicate human resistance through strategic destruction of settlements and capture of survivors. The DLC also enhances army management with unit upgrades and blueprint crafting, allowing for expanded army capabilities and reinforcements as objectives are completed. Legion units receive extensive customization, including new weapon variants and modifications for units such as the Legion Tank, Legion Artillery, and HC Platform, alongside upgrades for Swarm units and Homunculi, and a self-destruct mode for Legion vehicles.