Multiple Left Outer Join with lambda expressions

I have an SQL Query to do with Lambda Expressions like this, generally with more joins than in this example.

select Table2.a,
          Table2.b,
          Table2.c,
          Table2.d
   from Table1
     LEFT OUTER JOIN Table2
     ON Table2.a = Table1.a and
        Table2.b = Table1.b and
        Table2.c = Table1.c 
     LEFT OUTER JOIN Table3
     ON Table3.b = Table1.b AND
        Table3.c = Table1.c AND
        Table3.d = Table1.d 
   where ( Table1.a = ValueA )
   order by Table3.f

I'm doing this with Join() Lambda Expression, but i see in SQL Server profiler that this generate an INNER JOIN and i need a LEFT OUTER JOIN.

This is how i'm doing it with Join()

var RS = DBContext.Table1.Join(DBContext.Table2,
  Table1 => new {Table1.a, Table1.b, Table1.c},
  Table2 => new {Table1.a, Table1.b, Table1.c},
  (Table1, Table2) => new {Table1})
.Join(DBContext.Table3,
  LastJoin => new {LastJoin.Table1.b, LastJoin.Table1.c, LastJoin.Table1.d},
  Table3 => new {Table3.b, Table3.c, Table3.d},
  (LastJoin,Table3) => new {LastJoin.Table1, Table3})
.Where (LastTable => LastTable.Table1.a == ValueA)
.OrderBy(LastTable => LastTable.Table3.f)
.Select (LastTable => new {LastTable.Table1, LastTable.Table3});

I have been reading that it can be done with DefaultIfEmpty() or GroupJoin() but i haven't find any complex example with more than one LEFT OUTER JOIN.