Unfortunately it wasn't possible to make No Mercy display the full list of maps without the game breaking from doing so. I may have a solution to it, but it might not work.

I don't know if i'm the only one but No Mercy doesn't show all the maps, only rooftop and generator room, the rest works perfectly fine tho

Ah okay. I'm glad you figured it out. I'll take a look at the mod and see if I can make them work together better but it might not be possible.

I found out why it wasn't working; This --> https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=1305377347 enables me to play Single Player easier on certain modes like realism, mutations, and Survival so I was going through a separate Single Player Survival list I guess.

That's odd. I'll take a closer look at this issue soon when I can get on my computer.

It conflicts with the Left 4 Dead Survival Maps but not with anything else.

Is there any conflicts in the add-ons menu?

I have all of the maps installed it has to be something else causing issues.

Sounds like you don't have the maps installed. Do you have all of the L4D1 survival maps I ported subscribed to on workshop? This mod is intended to go with them.

It just doesn't work for me. I see the names of the campaigns in the list but not the posters and it just asumes they're all Dead Center so I can't access the maps

Ah yeah I probably should've done that. Didn't think of it. Thanks.

May i suggest adding the "L4D Survival Maps" as a required item? That way if people sub to this it'll give them a prompt to subscribe to the maps as well