Codename: Outbreak deploys the player into hostile terrain: dense jungle, hilly ground, and enemy complexes built to keep intruders out. Operating as a two-person special forces unit, players are routinely outnumbered by adversaries who are not forgiving of mistakes. Tactical coordination between both soldiers—issuing orders, covering angles, switching between the two—is the key to navigating objectives that would be suicidal to approach any other way.