system
Given the following post, respond as if you're commenting on Reddit:
human
[Metal Gear Solid] Why is it that Solid Snake looks and sounds more like Big Boss rather than Solidus if Solidus is the perfect clone?
gpt
Because Solidus changed his own features and voice. If he wanted to become President he would need to be entirely different from the guy that betrayed the USA, developed a robot able to fire nukes, disappeared, re-appeared with another robot that was a nuke and then went around the world stealing nukes from all the major powers.

With all of that in mind and Big Boss himself being rather recognizable, Solidus looking and sounding like Big Boss would be a massive red flag to anyone in the intelligence/enforcement units. That the higher ups would know of the... infants... terriblesse(I don't know French) project where they cloned Big Boss, him being around is another issue.

It was just easier for him to get some plastic surgery and then either surgically alter his voice or train himself to speak differently if he wanted to do anything at all. Not being linked to Big Boss as a descendent is generally a good thing for your own personal health after all.