I think Lune (like Loon or Looney) was a joke because she's kind of crazy... or actually crazy...

Not sure how well that applies in Raiders since even the basic NPCs use some manner of tactics. I tend to say wiping as in I am wiping them out in one or all sections. Obviously, this becomes more difficult and risky as the difficulty increases and just generally speeds everything up. We've pointed this out before that enemies tend to 'flow' into their cover positions. Thus, to control you're really just 'pushing' into those positions and wiping them out one by one or two by two if you have help. For example, with a double spawn of six you want to wipe out one section so you can hold it then pick off the rest as they naturally thin themselves out. Overall, you need to think tactically in Raiders as simply being good at shooters and/or action games typically wont hack it as difficulty pumps up and tactics and efficiency become vital.

There is still single player if you're just passing time and while you wont get much in the way of rewards it's the best way to practice. You can pick your difficulty as well so you can see what the higher difficulties are like. In that way, when you play with more veteran players and the difficulty increases it wont be quite as jarring for you.

I'm pretty new to the game and find it very interesting
But my pc can't really handle the graphics in this game since the lowest you can get is "normal" in the settings, is there any other way to play in low graphics settings?

While you might not like the idea of playing on console it works plenty well on them. I have the same problem, I couldn't even load into the menu because my graphics card is too old. So yeah, if you just want to put aside the platform nonsense and just play the game you definitely have options and the free to try is available on all of them. It's possible, with time those lower settings being used on console will find their way into the PC version as they did with Vermintide.

Seen brand new teams finish it but obviously your current difficulty will influence whether you can burn it down or need to stick it out. Here's a helpful link regardless!

https://www.raidersofthebrokenplanet.com/community/index.php?topic=1230.0

*hands out COD badge* You earned this!

¿Puedes poner esto traducido al inglés en la sección "Consejos"?

Nah, just rush up to him and punch him in the face! What could happen?