Before completing the achievements, I recommend downloading the map that I created specifically to make them easy to complete.

Download the map from Gamebanana:
https://gamebanana.com/mods/590370

The archive will also contain a file that will tell you where to put the map.

After that, go into the game, activate the console and enter the command:
map achievement_helper

To complete all the achievements related to weapons, and these are all the achievements in this game, you usually need to kill a certain number of people with this weapon, and also cause a certain amount of damage with this weapon. In fact, it's a stupid grind, for which you don't need much intelligence.

There is a nuance with cyber-weapons, but thanks to my map, this problem disappears, because everything is located and happens in one room.

To complete all the achievements related to weapons, and these are all the achievements in this game, you usually need to kill a certain number of people with this weapon, and also cause a certain amount of damage with this same weapon. In fact, it's a stupid grind, for which you don't need much intelligence.

There is a nuance with cyber-weapons, but thanks to my map, this problem disappears, because everything is located and happens in one room.