You can get stuck behind 2 chairs when trying to take a pistol in the first map.

At the start of the 2nd map you might want to take away the manhole cover, as it makes it harder to climb down and it can even block the ladder entirely.

In the finale it says you need to find 5 buttons but I only need to find 4?

Thx for your feedback, i will fix that :)

Coach can't talk in chapter 1
The first aid kit near the train tracks in chapter 2 cant be taken

For the loading screen, maybe you can change the .vmt to:

"UnlitGeneric"
{
"$translucent" 1
"$basetexture" "vgui/maps/loadingscreen_venissia"
"$vertexcolor" 1
"$vertexalpha" 1
"$no_fullbright" 1
"$ignorez" 1
"$additive" 0
}

The file name is loadingscreen_venissia but the basetexture you use was loading_screen_venissia.

As for Coach not talking, try deleting the intro.

One of the first aid kits in the last chapter can't be picked up

Thank you !
Just need to replace it with a weapon_health_kit_spawn

Coach not talking is because the game isn't accepting sounds unless from DLC1 or beyond.
Use the audio scripted scenes from the DLC 1 folder and not raw game data.
For some reason the DLC files allow it to function without issue.

@Ryan

Thanks for your help

I aleady tried but it’s still broken

Im gonna deleted the intro and make a new one

you're welcome.
i remember the campaign "Wild Ride" had the same problem.
maybe you can talk to its author and get more help on it?
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1607313394

Fixed ;)

Thank you for your help, @Ryan

To fix this bug :

Just need to deleted the old .vmf and make a new one with a new intro and change the name of the .vmf