: A new game mode where players choose a General to fight through a series of increasingly difficult AI opponents on their home turf. The final battle is against General Leang , a "boss" character who utilizes technology from all three factions (USA, China, and GLA).
: Zero Hour is often cited by the community at C&C Wiki as having a greater focus on clever tactics and strategy compared to the base game's more vehicle-heavy combat.
: The game features 15 new missions across three campaigns, which brought back the series' tradition of using Live-Action Full Motion Video (FMV) briefings featuring news reporters to provide context for each mission. Strategic & Technical Enhancements
: Each faction received significant additions, such as the USA's Sentry Drones, the GLA's Battle Buses, and China's Helix transport helicopters.