That's right. Like it or not Mass Effect 3 will include both competitive and cooperative multiplayer modes. The multiplayer modes will be designed by Bioware Montreal, so the single player mode shouldn't be negatively affected by the addition of multiplayer, but that won't stop rabid fanboys. This move will make some gamers happy, and even more gamers furious.
What is your take on multiplayer in Mass Effect? I personally don't care, but I would like to hear your opinions.