One more good question...

[Pyro King]

So I also understand this (also in case there is comes its been a minute since I've been on forums, please direct me to a more suited page for these specific posts) I know Slade 3 and SlumpED is also used for making custom wad's and such. And I've seen how you can make certain classes with custom looks and etc so would it be possible to additionally add on say side stories, missions, bosses, etc to the game as well as custom skin swapping? (So like if you have a certain weapon in game your skin shows that weapon too but if you switch to a different one the skin itself also switches to what that weapon is, sorta like how protoman armor works and the power suit armor)

Thanks again.

[Ruzma]

While all of the above is possible (the doom engine is super moddable), it would take (considerable) time and manpower for...just about anything?
So...um, yeah.

Hope that's what you were looking for
Also, you should probably search for question-driven threads instead of making new ones.