xenomorph stealth tactics
https://papa-wiki.win/index.php/Sevastopol_Station_Walkthrough:_Surviving_Alien_Isolation_on_Nightmare_Mode
Xenomorphs don't just sprint at you—they vanish into vents, mimic the hiss of steam, and use the dark to close space before you even register movement. Their tails flick to draw gunfire, while the real killer creeps along the ceiling, waiting for the panic to set in.