Bosses Impossible to Fight

I'm having an issue where I'm getting instakilled by bosses, sometimes before they are even visible to me (thru objects and such). Worst case is having Birdeye shoot me from the radio tower on shoreline all the way at resort. They tend to miss as the MOA of the gun spreads out over the long distances but the bots shouldn't even be able to see me at this distance. So far I've had this issue with The Goons, Gluhar, and Sanitar so I know its not an isolated incident.

Quick edit, I did have this issue with Tagilla as well but I chalked the 2-3 times he instakilled me to just me not paying attention.