You know, old games are like this. They get hard, they contain a lot of maps, which can be quite similar, etc. That's how it was in the 80's, and sometimes in the 90's too. Daggerfall, anyone?

Yep, somewhere game developers went from:

"Whoever is playing this game is gonna die so badly, and there's nothing he / she can do about it! NYAHAHAHAHA!"

...to:

"If he / she doesn't make it on the first try then that's proof that the game sucks... I better add in-game hints that explains how the in-game tutorial works so they don't fail that!!"

If quake was done today