'Cray-tos' is how it's "supposed" to be pronounced In the English Language. However, in Tales of Symphonia they pronounce it "Krah-tos", which is what I've adapted it from. :V
No... That's Mithos' clothing. xD; The original image goes into a dark abyss, so I decided to add something there to the icon so it doesn't. This is in the actual OVA. @_@ I mean... I can kind of maybe see cosplaying going on if it were like... an extra, but Mithos hasn't appeared in an extra yet, because he's just appeared in the OVA.
I don't know how 'most people pronounce' it, tbh. Never played GoW. Just saw some trailers/heard about it and whatnot. 'Cray-toes'. That's how I pronounce it.
Weeelll, just take a look at that image where he is lying and has a blood spot on his neck. It looks an automail has been connected to his shoulder in that pic. The entire face + the metallic stuff at his shoulder make it seem like he is cosplaying Edward.