This Saturday, August 31 at 4 PM EST, it'll be time to celebrate this week's ARMA 3 development build update with a little co-op gaming event! Make sure to prepare your PC by downloading and installing the development build by doing the following:
1. Right-click "Arma 3 Beta" in your Steam Library and select "Properties.
2. Click the "Betas" tab. Under the "Select the beta..." dropdown, select "development - Development Build".
3. Ignore the "Enter beta access code..." field and click the "Close" button. The development build of the game should start downloading after a few moments.
And that's not all - it's highly recommended that you find yourself a mic and join a dozen of us in voice chat on our Mumble server at mumble.giantbombing.com port 64738. The Mumble software is freeware and available for download at http://download.cnet.com/Mumble/3000-2150_4-10779248.html . People are actually on that server practically 24/7 in case you just want to hang out, too.
Note: I'll post an update as soon as server hosting details are available, so stay tuned for that.