UPDATE NOTE as of 2nd October 2022.
All maps and missions files are still being reworked on which means a lot of tidying up, adding new builds and all mission files also needs to be redone as well with fixing script. Over time the Close Quarter map bundle will be updated so that's all 12 close quarter maps and mission files. I can' say when the update will be but it will be soon.

UPDATE NOTE.1st august 2022.
I have decided for now to not add any more close quarter maps although I may do in the future?

installation details updated.

installing close quarter map bundle:
click subscribe then when download finishes start Gates of Hell in editor mode. switch to (F1) then hit esc and head to mods and 'Activate' close quarter, click 'Apply' then head to either (F2) or (F3) mode and load any of the 12 maps titled as, close quarter1, close quarter2 ect. all valour mission files show as v1, v2 while none valour misison files show as,1, 2. I would advise when all none valour mission files are to be played then keeping in mind to disactivate valour mod first.

If you get this error, spawn mg42_lafette[0x25 actor] then that means the hangemhigh mod here, https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2514852973 must be installed or just make your own mission file by first loading any close.quarter map in (F2) and then pressing (F3) atop of your keyboard so then to design or script your game.

for all maps to load properly then required mods should be listed and 'Activated' in order as,

1. contact mod (top)
2. mow2 mod
3. valour mod
and then once you click apply then the mods activated will readjust themselves.

important:
When your mini map (top left) begins to fill and there is plenty of ai on the ground and you begin to experience the terrible lag. switch to (F3) mode and press (key-6) then in the box seen to the top right of your screen (triggers) look for endless.waves and right clicking on either endless.germans, endless.russians, or endless.allie (depending on loaded mission file) endless.allie is (usa/eng) anyway, after right clicking then scrolling down to (off) then whatever nation you switched off will then stop spawning into the game. This I would paramountly advise for gamers with lower end rigs to use this option as any terrible lag can cause the game to freeze in an instant resulting in a potential crash?

all map builds and mission files will continue to be updated.

added to close quarter 12.
tweaked mission file in close quarter 12.
updates are ongoing.

updated close quarter 12.
updates are ongoing.

added new map close quarter 12.
updates are ongoing.

minor fix in close quarter 11.
updates are ongoing.

added to close quarter 11.
added mission file v2 (valour)
updates are ongoing.

added new map, close quarter 11 with mission file v1 (valour)
updates are ongoing,

added to close quarter10
updates are ongoing

update note!
ignore v2 mssion file in close quarter 10 and use only v3.

added 3 new maps, close quarter 8, close quarter 9 and close quarter 10, with mission files included. mission files beginning with v is for valour mod.
to switch off endless wave script when in-game then press (F3) then (F6) and shown to the top right of your screen where it says 'triggers' (top box) look for endless.waves and on either endless wave script right click and scroll down to (off)
floating models are being dealt with.
slow updates are ongoing for all map builds and mission files.