>>530694412
Killa isn't that hard to kill (I feel like they made boss AI dumber in general recently). Just bring a bunch of grenades and toss them before entering a new area, he only has two voicelines for grenades
>blyat
>hahaha, begayu, begayu
If you hear him you can just avoid him if you don't want to fight him. In case you do get aggro'd by him take cover and throw another grenade, AI will always prioritize running away when you throw a grenade so you have a time window to peek and magdump his head or legs depending on how shit your ammo is.