How to find demolisher units quickly?

I don't often play disruptions but I need the axi relics and I've been trying to do apollo lua. Joined a squad recently that managed to find and kill demolishers so quickly for waves after waves, I was wondering if there were any tips and tricks to finding the demolishers quickly? Or should I just run around as quickly as possible?

Edit: Thank you for all the tips! I followed every one of them and my experience has changed drastically. This mission i used to fear is now... borderline fun 😳