Well yeah of course you need those breakout games that people latch onto that are successful.
I am saying that Battlefield is successful because it's fairly basic. To call Battlefield something particularly niche and not generic is laughable when you consider it's pretty simplistic gameplay and mass appeal. Fortnite got mass appeal for exploring a much less followed genre and changing the game in a way that was accessible.
Tbh it seems to me to just be something out of the rule of cool, but it could very well be in that kind of vein too. I don't think anyone with that kind of amputation and clumsy prosthetic would be allowed to see combat though so I wonder what her story is.