I am looking to bridge a VPN connection (open to what kind, as long as the client can be Windows 10) that then gives the VPN user access to VLAN 70 on another network segment. I think I will have to bridge the VLAN to the VPN router and that is not a problem. Problem I have is with a Windows desktop client OS, how do I bridge to the Bridge70 (one including the VLAN 70).

Sounds like PPTP and L2TP/IPSec cannot handle the MRRU setting. Not sure the client will want to configure OpenVPN. Am I out of choices?
Thank you in advance,
Jason