World in Conflict is nothing short of revolutionary, simply superb RTS and will go down in history.
You don't have massive amounts of control over your units like in Company of Heroes, but the core game is different, especially as its more fast paced action you can enjoy it in a hurry, and don't need to get stuck with serious tactical situations. you get objectives, and you aim too please. When the story line has characters like this, you really can get enticed into the campaign. its not just mission after mission, but there is actually a storyline to follow.
I have noticed you never really get too see yourself though, (you are acting as a in game lieutenant named "parker") you never get too see his (your) face, which i find rather intriguing :)
it's very graphically intense however, and you WILL need a rather top-of-the-line PC in order too play it at its full potential,
I have a Pentium D 3GHz (dual Core) processor, running Vista Home Premium
2GB of kingston DDR2 RAM
and a ASUSGeforce8600GTS graphics card, and i can only just run it on High detail with average frames per second.
and my PC is only 3 days old. So i wouldn't like too see it on a even slightly out-of-date PC.
Even though it requires heaps, it sure delivers when you can play it. Although it could probably do a bit better with the DirectX10 that is available to it.