A multiplayer focused RTS at heart, World in Conflict is a very challenging game for newcomers. Base building is replaced by managing reinforcement points to optimize the composition of your force, consisting of units from one of the four main doctrines: armor, air, infantry, or support. Although it is possible to deploy units from a different doctrine, it's far more expensive to bring to the battlefield. From personal experience, it feels as though some units are not very well balanced, such as Anti-Armor Infantry not feeling like an effective choice compared to the more versatile and cheaper Infantry unit. However, the off-map call-ins, called Tactical Assists or TA, are really in-depth and provide great dynamics to gameplay. However, bad players will have difficulty in spending points to use TA's, as the points are accumulated from performing well on the battlefield. Fortunately, you can trade these points to your teammates for them to use.
The singleplayer campaign is largely forgettable, with only a handful of touching moments, most notably at the climatic battle to protect the still-fictitious Strategic Defense Initiative, also known as the Star Wars project, from Soviet forces learning that the U.S. had nothing to protect itself against nuclear attack. The story does not go out of its way to fistpump "AMERICA!" like some other military games do, even going so far as having a central character being directly involved in what would be considered a war crime. However, the depiction of Soviet forces from their perspective is incredibly cliched and felt entirely uninspired ("[The Americans] shall know the greatness of Socialism!" ... or something to that extent).
Overall, World in Conflict has easy to learn mechanics but difficult to master gameplay (in the multiplayer field, at least). Anyone with an itch for commanding American, Soviet, or NATO forces in an alternate history Cold War setting should give the demo a shot.