1 In the steam library right-click on Arma 3 Alpha
2 Go to properties
3 Betas tab
4 In the drop down menu select development - Development Build
5 Load Arma 3 Alpha
5 Select any server to join
6 Click ok (no classes, teams, or players will be visible)
7 Within 20 seconds people will start saying in chat with text and voice that they have turned into a bird