I know she's Japanese and a bad ass spec/ black ops agent... but since when is the Major a ninja?

Tis the nature of spec/black ops, at least usually. Focus is on not being detected, as per most of The Major's missions same thing.

why does this picture have a metal gear solid tag?

debutsu said:
why does this picture have a metal gear solid tag?

Because it has a Metal Gear-ish theme?

debutsu said:
why does this picture have a metal gear solid tag?

Armor, I suppose. It's similar to Raiden's outfit from 4.

I doubt it!.

CeruleanWings said:

Armor, I suppose. It's similar to Raiden's outfit from 4.

Looks more like the FROG outfit to me. Minus the helmet, of course.