A really cool thing happened There were 3 enemies on top of a building.  I fired a grenade and it caused them to fall down right next to where my ranger was.  Blade storm then proc'd and it killed all 3 of them.  I wish I had recorded it.  

Anyway, I picked this game up on the PS4 free game of the month thing and I am really enjoying it.   I got wiped out by the UFO mission on my first play through.  This time I am close to the end I think, I just found the gateway thing.