biophage combat tips
https://wiki-mixer.win/index.php/Mastering_Boss_Fight_Strategies_for_the_Toughest_Encounters
Keeping a cool head is key in biophage combat. If you're cornered, conserve ammo for headshots; a single well-placed round beats a whole magazine of panic fire. Use the environment to funnel them into chokepoints, but watch your flanks—biophages love to flank. A loud noise can buy you a second to reload, but it'll also draw more of them.