I agree, but the problem, I think, isn't that this character is showing skin or is heavily sexualized, it's that in comics and games, and in film and music and more, female characters are often sexualized, and more often for no good reason. A male character can be handsome or ugly, dark or comedic, stoic or a jerk, emotional or practical, or a myriad of all these elements, evolving and dimensional, like a real person. But female characters are often not given such a range. They get shoehorned into one of a few cliches. They're either sexy and likeable, or to balance it out, taken to another extreme of bitchy hard-ass. So it isn't the sexualization in the one instance, it's the cliches and tropes of the whole. But because the individual makes up that whole, people are offended by continuing examples of overdone, unrealistic, unrelatable female sex objects.

This Metal Gear lady could very well have a interesting character, but if she doesn't, combined with her appearance, just adds to that ocean of one-dimensional female stereotypes. There's obviously also an ocean of male stereotypes across the road, it's just little deeper and slightly more subtle. Honestly, I think a lot of the issue isn't stemming from sexist creators - just unimaginative ones.