https://www.digitalcombatsimulator.com/en/shop/modules/My personal recomendation: Viggen. Just got large patch again today, really great module and heatblur wont leave it unfixed  And if you wanna get real #%&*$# , take HAWK 
I5 8400 , 16gb , GTX 1070 oc , Win10 64bit . Virpil T-50 27" monitor with 2560x1440 rez ... DCS + Oculus CV1 + Samsung Odyssey . (odyssey is better for flight sims)
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