For those experiencing GTX 770 (or similar card) crashing with Direct X errors in mulitplayer - switching off "Origin In Game" seemed to sort out stuff. Prior to that, I was getting crazy flickering etc. I did toggle to DX12 in game too at some point, but will experiment flipping it back to DX11 and see if it's still stable. No benefit for GTX 770 in DX12 anyways.
