You can doubt Sigma's word if you like, I'm inclined to believe him. I think it certainly explains a lot.
Well, Sigma could have been slightly clearer in the English game >.>
Speaking of things a bit vague, do we have any indication of how Axl figured he was a prototype, or did that just kind of happen? It's a bit of an odd transition from there being just Axl, and then a whole generation of them.
I think the only thing that explains Vile's presence in X8 is his popularity. Dynamo seems just as willing to be Sigma's [sonic slicer] and likes following orders a lot more, but he wasn't chosen. Vile appears inexplicably as form "V" and the show goes on. The choice to revive him seems fairly arbitrary. Maybe Sigma just missed the little dickens.
Two things about Dynamo are of note; though he worships Sigma, he's still in it for the money and he seems to have grown quite weary of fighting with the dangerous X and Zero. He and VAVA are just innately different, that is why VAVA just fits so much better within the events of X8.
But, why would he decide that?
Isn't it a natural conclusion? Sigma is the first Repliroid, yet none would exceed him for years to come. Only a bunch of mysterious centuries' old robots could... Thing is, even though he might come to the conclusion, he might not at all feel like putting it to the test. Perhaps he would simply try to promote Repliroid evolution within the confines of human society? He would most certainly conclude that technology advances best in times of war, but he already has a group of Hunters that need to be kept in the best shape possible; he doesn't need to incite war himself.
Sigma is revered even as a guardian of humanity. So trying to kill them off... seems not so much logical, as simply hate inspired. And if there's one thing that an evil virus should do, it's inspire hate.
I wouldn't say hate... Much more a complete absence of compassion. Sigma doesn't seem to hate humans, he just doesn't care. Also, his plans don't just hurt humans; it's an evolutionary arms race that involves humans and Repliroids alike.
And put up some "no fleshbags allowed" signs to ward off wandering humans?
That worked so well when Epsilon tried it...
Red gives Axl his scars.
If we went by the concept art for Axl, I certainly find this feasible. But as it is right now, that scar is in an impossible to hit place, requiring even two attacks...
It also heals Axl's scar.
Remind me, does White Axl have the scar?
I think that X7 OST translation is also lacking. I thought there was a part that talked about them not being sure what buttons to map Axl's copy shot on or something in there too. Did Zan crop it for relevance?
"Robonyanya" did the translation, I don't think she did more...