Which is more beneficial to use Ghost Pro Or Flak Jacket Pro?

i just got both of those pro perks yesterday and i always had ghost pro a like 5 other times but this is my first time for flak jacket pro and i mostly play search and destroy so what you think is better? flak jacket pro (so the campers claymores wont kill you) or ghost pro (so their spyplanes and airsupports doesnt affect you) i would use hacker so flak jacket isnt needed but i like ninja better