Command & Conquer: Generals - Zero Hour (2003)

Three short follow-up campaigns introduce units and situations that give the USA, China and GLA different operational problems. Switching between a conventional force and improvised or specialised tools makes replay more interesting than repeating one build order. Choose it for compact, direct RTS missions; the separate Generals Challenge offers another reason to return after the campaigns. Zero Hour is an expansion, and the original Generals campaigns are separate content; older controls and abrupt pressure spikes remain part of its character.