Hi and welcome 🙂
Thank you for considering our plugins for your project! I’d be happy to answer your questions.
1. Can this be set as the default view for displaying events to visitors?
Yes! We’ve included the option to set whichever view you prefer as the default. Please see the screenshot below for reference:

2. What addons/plug ins are required to achieve this?
In order to gain the Map view, you would need to purchase Events Calendar PRO.
3. Does the filter bar work with this map view?
Yes! If you visit our demo site’s Map view, select the “Show Filters” text to see the Filter Bar in action.
Please let me know if I’ve sufficiently answered your questions and feel free to include any more you might have in a reply. Thanks again and have a pleasant rest of your day. Cheers!