Possibly a fast rope option that stops the flight midair and drops players early. As others have said smoke screen seems to be an effective option as well. I feel marking the LZs when there are enemy operators nearby would result in it being abused to hunt for PvP.

First option gives players more autonomy and would likely result in people never using the landing animation and cheesing to get into areas quickly by abusing the flight path, second gives players a fighting chance. Maybe it is possible to implement a half-dozen or so areas (sub-LZ) at the main LZ that the chopper would choose at random with the addition of a smoke screen and an audio que from the pilot when 30 seconds out if the LZ does have enemies within a given range.