Thanks - I wanted to share the solution, thanks to user AlwaysLoadingData on StackExchange:

SELECT

KSA.ID as KSA_ID

,KSA.KSA_Version

,KSA.KSA_Sort_Order_Number

,KSA.KSA_Outcome_Number

,KSA.KSA_Category as KSA_KSA_Category

,KSA.KSA_Category_Sub_Num

,KSA.KSA_Category_Sub_Num_Descr

,KSA.KSA_Category_Sub_Num_Sub_Alpha

,KSA.KSA_Category_Sub_Num_Sub_Alpha_Descr

,KSA.KSA_ID as KSA_KSA_ID

,KSA.KSA_Descr_Combined as KSA_KSA_Descr_Combined

,KSA.LastUpdate

,KSA.Date_Created

,OutcomesKSA.KSA_ID as OutcomesKSA_KSA_ID

,OutcomesKSA.KSA_Value as OutcomesKSA_KSA_Value

,OutcomesKSA.ObjOutID

,ObjOut.ObjectiveID

,ObjOut.OutcomeID

,Objectives.ID as Obj_Obj_ID

FROM

KSA

LEFT OUTER JOIN (

OutcomesKSA

INNER JOIN ObjOut

ON OutcomesKSA.ObjOutID = ObjOut.ID

INNER JOIN Objectives

ON ObjOut.ObjectiveID = Objectives.ID

) ON KSA.ID = OutcomesKSA.KSA_ID

AND Objectives.ID = 29 --filter

WHERE

KSA.KSA_Outcome_Number = '1'

AND KSA.KSA_Category = 'k'

ORDER BY KSA.KSA_Sort_Order_Number;