The game is frequently on sale for [under $5 on Steam](https://isthereanydeal.com/game/tomclancysrainbowsixiiigoldedition/history/). This edition contains the Athena Sword expansion but not Iron Wrath. Iron Wrath is out of scope for this guide, but it adds 8 maps, 5 game modes, and 6 firearms.
1. Borderless Gaming will run the game in a fullscreen window, allowing you to instantly alt-tab. You can [download it from Github for free](https://github.com/Codeusa/Borderless-Gaming/releases/).
You can now play the campaign, a custom mission, or a training scenario. To unlock all maps in custom missions, press `~` at the main menu and enter the command `unlockall`.
On September 4 2016, Ubisoft shut down the authentication servers for Raven Shield. We use OpenRVS to point our clients at a new set of authentication servers so we can still play the game together.
1. (Optional) Edit `Servers.list` to choose which servers are displayed when RVSGaming servers cannot be reached. The names in this file are for reference; the in-game server name will be retrieved from the server. You can force the usage of this file by editing `openrvs.ini` and changing the value of `ServerListURL` to an invalid URL, such as `http://127.0.0.1/servers`.
