There are 3 main steps to run your RO2 Dedicated Server:

1) Download, Install and Run SteamCMD;
2) In SteamCMD, Download the RO2: Heroes of Stalingrad Dedicated Server;
3) Start the server.

Obs.: At some point during these 3 steps your firewall is going to ask you to allow traffic for your dedicated server. I´m almost sure that if you say "no", this guide will not work.

1.1) Create a folder for SteamCMD.
C:\steamcmd

1.2) Download SteamCMD for Windows:
https://steamcdn-a.akamaihd.net/client/installer/steamcmd.zip

1.3) Extract the contents of the zip to the folder C:\steamcmd

1.4) Go to C:\SteamCmd\ and open SteamCmd.exe.
The program will automatically update and show you the Steam> prompt. Type help if you need more information.

2.1) Log in SteamCMD with your Steam Account
You must log out of the regular Steam in order to properly log in to SteamCMD Update Tool.
In Steam>prompt (SteamCMD) type:
login username password
Where “username” and “password” are your username and password on steam
If you receive a Steam Guard error, check your e-mail for your access code and type this access code on the required field on the steamCMD window.

2.2) You should see a message stating that you have successfully logged in with your account.

2.3) Install or Update RO2 Dedicated Server.
If this is your first time installing or if you are trying to verify the integrity of the server files, type at the Steam>prompt:
app_update 212542 validate
or
app_update 212542 (if you already have a dedicated server and just wants to update it)
Wait some minutes while the RO2 Dedicated Server is installed.

2.4) Once finished, type quit at the Steam> prompt to properly log off of the Steam servers.

3.1) Before running your server, close Steam

3.2) Go to C:\steamcmd\steamapps\common\Red Orchestra 2 and run RO2Server.bat
RO2Server.bat has some configuration parameters. If you want to change it, just edit RO2Server.bat on Notepad.

IMPORTANT: If you want to play with bots you must change “minplayers=0” to “minplayers=10” on RO2Server.bat.

After running RO2Server.bat, some messages will appear on RO2Server screen and the server will be ready.

3.3) Open Steam and run “Rising Storm/Red Orchestra 2 Mutiplayer”

3.4) In the game, go to multiplayer (Server List)/Lan and you´re going to see and get in your server.

This is a very basic guide. There are a lot of other things you can do on your Dedicated Server. You can find these things here: http://wiki.tripwireinteractive.com/index.php?title=RO2_Dedicated_Server

If you find something that you are sure that is wrong on this guide, please let me know.

Finally I think you must know that I work all day long and some nights too. So, I ask you to be pacient if it takes me to much time to answer any question. Also I ask you to understand that I´m not a IT specialist, so maybe I won´t know how to answer your question.

Hope this guide helps you find even more fun on this excellent game.

Be happy and play fair.