If you need to transit between terminal 1 & terminal 2 in Munich airport (international transit from Manchester to Muscat), do you need to go out the immigation area (passport control)  ? If so  , do you need Schengen visa for transit between above terminals  ?

If you need to transit between terminal 1 & terminal 2 in Munich airport (international transit from Manchester to Muscat), do you need to go out the immigration area (passport control)?

If so, do you need a Schengen visa for transit between the terminals?