There may or may not be a couple of places where you can get it (f.e. moddb site), but we propose you an automatic installer from redorchestra.pl site.

Get it from here[www.red.orchestra.pl] (as there were reports that some of players have problems with this download we made a mirror on Google Disc where you will be redirected)

This is self unpacking and installing (EXE) file for Windows users.

For Linux or Mac users it is a little more difficult as you need to do everything maunally - for your system the link is here (Google Disc).[drive.google.com] - it is a zip file so it needs to be unziped to steam/steamapps/common/red orchestra/ folder.

Be sure the game - Red Orchestra: Ostfront is NOT running!

For Windows just execute the exe file and it should be all. The installer using OP Registry should localize main Steam folder (it will display the path) but if something interfered you may enter the correct path.
The correct fragment of the path is so check it before install runs ahead.

For other OPs or if something wrong with the install (you have still black textures at Axis side) you after decompressing those files with the right path need to edit (via Notepad or smth. like it) RedOrchestra.ini file (located in Red Orchestra/system folder.

Open it (with as pointed any text editor you prefer) and find [Core.System] section and add after its last line those extra lines https://pastebin.com/cFntLK0y and save it (by overwriting existing one) so after all modifications should looks like mine (the line order is irrelevant, but all of that should be in yours): https://pastebin.com/Dhedtrpz

Nowadays there are no constant servers with this mod, but RedOrchestra.pl plays it on the events called FightNight starting at 20:00 CET on Fridays. FightNights now are on scheduled cycle reading like this:
FightNights schedule (Fridays 20:00 CET)

- Carpathian Crosses
- Mare Nostrum
- Siebenbürgen (Revenge of the Turul) + CC assets
- Savv’s Pick – Forgotten Maps

(so every Friday has its theme FN now)

to see what FN is played this very Friday - join Steam Group: RedOrchestraPoland

or/and join ROPL DISCORD[discordapp.com]

We hope you will join us without any problems for next(s) CC-FightNights

...now video samples from RO.PL CC-FNs: