An annoying drone

I've got an Asura Engi char, but its constantly followed by an annoying little helicopter drone just off one of its shoulders.

Any idea on what it is and how to get rid of it?

It's part of the scrapper elite specialization and you can't get rid of it, while using it.It can be used to revive downed players from a distance.If you don't want it, don't use the scrapper specialization.

Thanks for the reply. That clarifies things.I just need to figure out a non scrapper build for my engineer...

I suggest you head over here to the Engineers forum and ask for advise or read some available threads.Maybe there's something helpful already. I can't tell you much about Engineer, because i'm barely playing mine.