>>719201450
Botch job.
No but really, it's just Kojimbo pottery. MGS3 is emo as fuck with how much symbolism and poetry ties into the themes. I'm certainly not defending it, I hate the Prequel Trilogy for the most part.
For a pragmatic explanation, you can pretty much make up anything you want. Maybe it's two separate scars that coincidentally met? Maybe the extended portion of the scarring was a result of the injury that forced her into labor, or another injury sustained at the same time. Fuck it.