Command & Conquer: Red Alert 3 is a real-time strategy video game developed by EA Los Angeles and published by Electronic Arts.
Red Alert 3 retains the core real-time strategy mechanics of the Command & Conquer series.
Warring factions harvest resources using vulnerable collectors and use those resources to construct military bases and forces on-site.
Structures form a shallow but wide tech tree with a variety of units and elusive superweapons.
Weapon types are specialized to the point where a rifleman can withstand direct hits from an anti-tank cannon.
Red Alert 3’s major refinements are the addition of the Empire of the Rising Sun to the factions of the sub-series, a co-operative campaign, and expanded naval warfare.
The single-player campaign is fully co-operative. Each mission is played alongside an ally.
These can be played online, with another player. Offline it is one of several computer-controlled characters.
Teams share income and generally start with the same forces.
Computerized characters can be given simple commands, such as an order to take a specific position or to strike a specific target.
The campaign has nine missions for each side. Each side’s plotlines are mutually exclusive.
Source: Wikipedia