CubCaller

I think I've figured it out... I needed to install Arma Reforger Server as well

I have created a new project, set a new terrain, added sun/water/clouds etc... and created the player controller. I followed this tutorial exactly: https://community.bistudio.com/wiki/Arma_Reforger:New_Terrain_Setup , as well as other tutorials online. Yet I'm unable to test my map. The play button to set it to "Game Mode" (F5) is greyed out and unavailable. Please anyone help me out, what am I doing wrong?