Greetings,
One of our colleagues has answered to a thread with a very similar issue to yours, and they’ve made a little configuration example, more specifically, this answer: Layer 2 TAP VPN - RMS VPN HUB - #7 by Justinas
After looking at your provided field topology, it looks like you wish to connect two locations that have the same LAN and access it via RMS VPN. If we understood correctly, then you can use the RMS VPN in TAP (layer 2). Meaning, you’ll have to create a new VPN Hub and select “TAP” instead of “TUN”:
Kind regards,
M.