Like said, Rambo only works if you see it as pure fantasy, something going on in the head of the lead character. It would explain why they have the bad guys dressed in Japanese army uniforms, and why at the end, instead of shooting Charlie Napier, he blows away the computer (symbolic of the individual's resistance against the impersonal, mechanized military-industrial complex, blah blah, blah, blablah, blah). If Paul Verhoeven made the exact same film, people might recognize it as being a satirical (or something close to it) fantasy.
You don't seem to want to accept the fact that you're dealing with an expert in guerilla warfare. With a man who's the best, with guns, with knives, with his bare hands. A man who's been trained to ignore pain, to ignore weather, to live off the land. To eat things that would make a billy goat puke. In Vietnam his job was to dispose of enemy personnel. To kill, period! Win by attrition. Well, Rambo was the best!
You don't seem to want to accept the fact that you're dealing with an expert in guerilla warfare. With a man who's the best, with guns, with knives, with his bare hands. A man who's been trained to ignore pain, to ignore weather, to live off the land. To eat things that would make a billy goat puke. In Vietnam his job was to dispose of enemy personnel. To kill, period! Win by attrition. Well, Rambo was the best!