To make life simpler and to save time, it is recommended that each developer store their Red Orchestra directory as an environment variable, RODIR, on their Windows machine.

Locate your Red Orchestra folder, then perform the following steps:

1. Press Windows-Key+R.
2. In the Run window, type or paste sysdm.cpl and click OK.
3. Click the Advanced tab, then Environment Variables....
4. Under the User variables for group, press New....
5. For Variable name, input RODIR.
6. For Variable value, input the full path to your Red Orchestra folder (eg. C:\Program Files (x86)\Steam\steamapps\common\Red Orchestra).
7. Click OK.

You now have an environment variable called RODIR. This allows you to substitute the literal path (eg. C:\Program Files (x86)\Steam\steamapps\common\Red Orchestra) with %RODIR% on the command-line and other places.