Host Multiplayer Game
Step 1: Install Radmin VPN and create a network Download and install Radmin VPN. In the main Radmin VPN window, click "Create Network".
Enter the network name, password and click "Create".
Step 2: Ask your friends to join the network Send your friends the name of the Radmin VPN network and the password to join to this network.
Step 3: Run ArmA II Step 4: Add the server to the firewall exceptions You need to add rules to the firewall. Open Radmin VPN -> System -> Firewall Exceptions and add ArmA II to the exceptions.
Step 5: Create game Go to the game main menu and click "Multiplayer".
Click "New".
Select the "LAN" option in the "Host" line. Click "Ok".
Select "Map", "Mission" and "Difficulty" and click "Play".
In "Multiplayer Setup" window click "Ok".
Join Multiplayer Game
Step 1: Install Radmin VPN and connect to the network Download and install Radmin VPN. In the main Radmin VPN window, click "Join Network". Enter the Network Name and Password and click "Join".
Make sure you and your friends are on the same network.
Step 2: Run ArmA II Step 3: Add the game to the firewall exceptions You need to add rules to the firewall. Open Radmin VPN -> System -> Firewall Exceptions and add ArmA II to the exceptions.
Step 4: Join the game Go to the game main menu and click "Multiplayer".
At the bottom in "Address" line select the "LAN" option. Select the game you want in the list and click "Join".