To get this trophy you have to just jump out of a helicopter that is high enough so thst when you jump out it takes more then 3 seconds to hit the ground. You can pilot it or be the passenger, but when you feel your high enough to jump out hit circle and the trophy should pop soon after.
Note: not all maps have helicopters so a couple of maps to look for are oasis and end of the line in rush and crossing over in conquest.