User blog comment:Artoria's Bike/EMIYA Alter Theory/@comment-4802891-20170113103004

I like this theory! I'm going by the mandate that he IS indeed Emiya of course, although we don't know that just yet (it's pretty obvious but we can be thrown for a loop)

I'd like to add that EMIYA is True Neutral, which means he is pragmatic, neither Good or Evil. If this version is still True Neutral, it would hammer down the fact that people envisioned him as either Good or Evil, but his perception of the World wouldn't have changed. Maybe that's why this version of him has different weaponry : to emphasize the dark side people assumed he has (I associate sword with heroism and gun with treachery, even if it is not true)

Actually, on an amusing note : he was seen using a sniper rifle in EXTRA, rather than Projection Magecraft. It might just be a node to that.