Missions with dates 1 Dec 2014 to 30 Nov 2015 have mag var ranging from E5.1 at Incirlik to E4.5 down at King Hussein. At least in the latest OB release. I verified using an A-10C at each airport.
This is a blank mission that contains a Navigation Database template based on real world information for the Syria Map.
Syria Theater Nav Point Template 22DEC20
Download here.