Originally Posted by grimkillah
You means to have just one achievement (Defender) out of the whole game that is MP only, so you have to play their MP or buy an Apple iPhone? no thanks. Dead Space 2 is way better, it doesn't have MP achievements so you are not forced to play MP if you don't want to.
I have no idea what you are on about.
You don't have to play the MP for this either.