hi,
http://i298.photobucket.com/albums/m...2/ma5kcopy.jpg
Looking at CMT's and then at the over of Ghosts of Onyx, I noticed just how overboard they'd gone (no offence meant, but let's be honest, it bears only a passing resemblance); as far as Snaf and I could tell, the MA5K was no more than a cut-down AR mated to a BR handle and forend (though an AR fore would work as well, the BR one is less bulky and therefore the more sensible choice). The cocking handle would have to be moved to avoid it coming back and shattering the shooter's cheekbone (I want reciprocating handles on the human autos because it looks more interesting if something actually moves), and Snaf immediately suggested a G36 system, which I think works quite well with the 'no space wasted' design philosophy.
Basically, the MA5K can be expected to handle a lot like its bigger brother (again, much unlike CMT's). There will be differences though - a slightly weaker melee and decreased accuracy and control offset by less of an impact on mobility, a slightly upped rate of fire, and the various attachments which may or may not make it onto the rifle (ideally you'd perhaps see a group of four or five guys armed with them, with all different attachments or lack thereof). It'll also be louder, for obvious reasons.