Cod 4 MW no Multiplayer online

I installed with steam, cod 4 mw, I downgraded to version 1.7, as you can see from the picture, but I can’t play online multiplayer.

reading the guides they say to install cod4x, I tried but there is only the client for win, how can I solve the problem?

i was able to play online. here is the sh script.

download the manual client on the cod4x site and then run the script

if it doesn’t work, manually copy the folders following the scheme

echo Creating Directories.
 
cd .. && cd .. && cd ..
 
if [ ! -d "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW" ]; then
 
mkdir "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW"
 
fi
 
if [ ! -d "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin" ]; then
 
mkdir "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin"
 
fi
 
if [ ! -d "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/main" ]; then
 
mkdir "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/main"
 
fi
 
if [ ! -d "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/zone" ]; then
 
mkdir "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/zone"
 
fi
 
if [ ! -d "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin/cod4x_021" ]; then
 
mkdir "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin/cod4x_021"
 
fi
 
echo Copying Files.
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/launcher.dll" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/cod4x_021.dll" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin/cod4x_021"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/crashrpt1403.dll" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin/cod4x_021"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/crashrpt_lang.ini" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin/cod4x_021"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/crashsender1403.exe" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin/cod4x_021"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/dbghelp.dll" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin/cod4x_021"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/msvcp100.dll" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin/cod4x_021"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/msvcr100.dll" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/bin/cod4x_021"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/jcod4x_00.iwd" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/main"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/cod4x_patchv2.ff" "compatdata/7940/pfx/drive_c/users/steamuser/AppData/Local/CallofDuty4MW/zone"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/miles32.dll" "common/Call of Duty 4"
 
cp "common/Call of Duty 4/cod4-client-manualinstall_21.1/mss32.dll" "common/Call of Duty 4"
 
echo Done!