Shinji Mikami once said he regretted making Resident Evil 4 apparently due to the tone of the story as he rushed it. Already the idea of sending an American soldier to save the President's daughter sounds like that really old video game Bad Dudes.
Even Leon's actor said his character was basically Spiderman during Damnation and 6 as a result of the oneliners he had though I don't remember if Morikawa's Leon was the same.