Nate Ralph in his review of Red Alert 3 in WIRED (October 29, 2008) notes
For the most part, Command & Conquer: Red Alert 3 delivers the same sort of campy, alternate-universe take on real-time strategic warfare that the series' fans have grown to love. But this latest skirmish in the perennial war between the Allies and the Soviet forces lets you bring a friend to the battle.
The ability to engage in a cooperative campaign gives the game's hectic combat a welcome twist. For the first time in any strategy game, two players will have a chance to tackle a campaign side by side. This means constructing complementary armies, coordinating tactical strikes and fighting difficult computer enemies while working their way through the game's three campaigns and 27 missions.
I managed to buy the game on Friday. Unfortunately my human co-gamer has to go back to Australia the next day so I ended up playing the game alone. It will be interesting to play this game with my co-gamer. The interface is good and as I have souped up my VRAM to 8Gig, my computer gave me good performance without being 'hung-up.' It is an enjoyable game, similar to all other Command and Conquer. This time I get to play the Russians, Allied and Japan. Just finished the Japanese part of the game (9 missions).
read Nate Ralph's review here
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