Im new to mods?

[Salty Hobo That You Nobo]

I really want to download some mods for Doom (especially the Aliens mod). But I have no idea how. Can someone help?

[plastic_sinatra]

I want to know the answer that exact same question. Let me know if you get an answer.

[Hekksy]

http://doomwiki.org/
This should help you.

[Salty Hobo That You Nobo]

It's still rather confusing, but I am sorta getting the hang of it.
I downloaded the aliens mod but it doesn't work out so well. The textures and enemies are the same from regular doom instead of xenomorphs and alien textures.

[Salty Hobo That You Nobo]

I did get brutal doom to download just fine, though.