*slightly ninja'd by Q&A but anyway...
And in agreement with all... LOS is traced from the w34/w35/x34 CAFP (not along the bypass hexside)... if the vehicle fired at X35 the smoke hexside would affect the shot.
The one exception I know of for the smoke adjacent bypass is when your afv (or infantry in this case) is not in normal bypass but instead on a narrow road (village terrain) it would be IN smoke for all shots.