I've been playing through all the main Metal Gear games with my little brother since the beginning of this year. He had never played any of them before (he is the one with the controller), and some are also new to me (MG2, MGS4 onward).
My brother isn't that great at stealth, and often leans too much on shooting, if the game allows it, for my liking, but he generally managed to get through (we are currently 1/3 into MGS5) decently enough.
I don't know if it's because I have played it recently, but I couldn't make it past episode 6 of MGS1. I like the banter, Dan's enthusiasm and Drew's scepticism. But Drew is TERRIBLE at the game, and it really annoys me while watching. They play with the radar on, but can't avoid simple guards.
Drew should play the games as he wants and I'm happy to hear that he is enjoying them, but watching is literally painful :(