Before using Google Map in Strategy Report, user needs to fulfill the prerequisites
1) Create a report with the following characteristics:
2) Apply custom visualization on the report and Configure Map Properties:

3) Display Google Map in Image Marker or Dynamic Bubble style:
Image Markers:

Dynamic Bubbles:

Note: User should not use dynamic bubbles and apply custom image threshold because it does not yield a meaningful visualization. The bubbles are simply replaced by uniformly-sized bubbles of default radius and color. This is not a recommended configuration.