No one actually knows Snakes real name, she only reffers to herself with her code name around others. Her code name derives from the name she was using back when she was a major participant at Slaughter Time™.
She was apparently kicked out of the show after some event nobody knows about.

Snake is very talkative and social, unlike most of the team. This may make her come across as friendly and caring sometimes and she is. But in combat she can loose herself in her bloodlust, at times even injuring her own team. She also often considers her team as friends even if other members disagree.

No one has actually seen her without her helmet. Her combat attire also obscures her silhuette, making her not appear very feminine.

She has made her armor by herself and keeps adding to it.