syscrusher: At your screen 04 is about where I gave up on Metro 2033. The bots are so over powered, and the weapons so lame, it became frustrating being killed over and over. Good for you to be able to get past it!
hmm i completed Metro 2033 Redux 2 times already in the past, it's really good.
i didn't noticed really overpowered bots you're mentionning, maybe you're talking about the original Metro 2033, as the Redux version i didn't noticed anything being too resilient (out of the Librarians, those are fearsome opponents if you try to attack them instead of avoiding)
some monsters are strong and may require more careful aiming to maximise damage (usually aim for the head will take down nearly everything that is not a Librarian rather fast, like the shotgun on the Nosalis monsters in the section of my screenshot , 1 shotgun shell to the face is 1 kill)
For most normal human enemies in the game you'll be able to 1 shot kill with a pistol bullet to the head while sneaking
There are some sections that aren't easy but with some patience and trying to not shoot randomly to not waste bullets (military grade ammo is precious as they're used as money, but if you use them instead of the more plentiful garbage ammo it will damage highly anything) it's doable.