tap bridging same subnet

[pfalex]

Hi, I set a stretched lan (same subnet, connected with bridging on openvpn tap) on two sites local and remote, lan devices are pingable on both sides.
Here is scheme:

I am unable to make stretched lan devices reach internet thru wan1 on the local station, and to make local pfsense station to route properly lan and wan traffic.
How can I solve this task? Any help is welcome
Alex