HORDEPOINT mode in Call of Duty Mobile is a fast-paced multiplayer game mode where players team up to fight waves of enemies while also capturing and holding a single point on the map. Players must work together to defend the point from incoming hordes of AI-controlled zombies and other creatures, earning points for each kill and capture. The mode offers a unique and thrilling gameplay experience that requires strong teamwork, communication, and strategic thinking to come out victorious.