Hello,
this thing was just circulating a few rounds over Vienna. I don't think that it was a civilian/rescue/medical copter because it didn't sound familiar to me.... but maybe I am wrong...
didn't have a good camera so I had to use my phone...also it was windy so in the first video the sound is not very clear but you can see that it blinked red and had white/green light on
second video I lost focus when zooming in but sound of the copter is better to hear
was it an apache? if so I think it has to do with the current political situation
https://vimeo.com/229356137
https://vimeo.com/229356225