Hey devs!
There are maybe just a few reports about this or no at all...
( because no one expect me uses it - 95% of players at least in EU do not).
I have hard time spotting enemies with drone, sometimes even normally!
issue 1 - detecting it as human (red dot) and not marking the whole vehicle - any vehicle!
2 - straight up ignoring vehicle, like they are not existent, sometimes the same goes with troopers also!
Suggestion - you can make it easier to spot enemies ( my mouse going crazy trying to hit ONE guy and before marking him with red one, i spammed 100 white ones
) Reward players with 10 xp/points to encourage it or add customisation achievement to get people used to the functionality. 
Q: Marking/Spotting for all or only my squad?