Getting DC'd wont matter as your points are saved on the server, not on yourself.
I think there is some really big miss-understandings on how these points are achieved, simply being there will not get you points, so ill briefly explain.
* You get 1 point for every 10 seconds that you are within 50m of the air drop
* You get 1 point for every kill you get (If you're shooting from an armed vehicle, it's likely that the driver will get these points and not you)
I see a lot of people sitting 100m + away from points and complaining that they aren't getting points, this is why....
There was a bug however back in November where you got rewarded by the amount of times you died rather than kills, the bug was discovered when DeeJai started to get max reward, once I seen that I knew something was wrong! But that has been corrected now and the rewards are working as expected.
However... If you're not online when the rewards are paid, you will obviously miss out, so if you DC or your game crashes or the server shits itself, then there would be no rewards for you. Of course if it was the server that shat itself, I'd run something in-game to reward people once people returned.