I'm a more old school X-Men fan. I haven't really read many X-Books that take place post-Civil War, but from what I have read of Joss Whedon's run of the X-Men and other such X-Books of the time period (if any), the old team leader Cyclops was actually at his most interesting (to me), where he seemed as a stressed, war torn, old hand of a soldier closer to a more cynical Captain America who needed to be reminded that he maybe going a little too far at times. But as of Avengers vs. X-Men, or X-Men vs. Avengers if you prefer, Cyclops seems to have utterly LOST HIS GOD DAMNED MIND! He's working with Magneto, denouncing Xavier's dream as wrong and going nutso with the agenda to protect Mutants even though that mentality landed him against his friends and allies and makes him look like Magneto Jr. akin to an image from Fear Itself where Cyclops wearing Magneto's costume (though that image seemed to be more of a cautionary vision warning Cyclops of who he was becoming).
Will someone please fill me in on the important character developments between "War General" Cyclops and "Jerkass Terrorist Evil Guy" Cyclops? And maybe reassure me that this is temporary? (If you like this change that's fine, I'm just saying my POV).