How do I download ArcGIS Field Maps (Android) without access to Google Play?

If you don’t have access to Google Play, and it is necessary to download the latest version of ArcGIS Field Maps to an Android device, Esri provides a setup that can be downloaded and installed on the device.
 
While downloading ArcGIS Field Maps from Google Play is the recommended method, it is also possible to download Field Maps from Esri to a workstation and install it on the device.

1. Download the setup file for Android
2. Run the .exe file, and extract the contents to your machine. 
3. Use the extracted files and your organization’s deployment system to deploy the app to your devices.