How to counter it: Martin's "flashy thing" to debuff all creatures plus "rapid cool down" for his fever skill and mixtapes. Valerie's "surplus" for free explosives (always give flashbangs to Martin) and "remedy" because it's literally the best skill to remove. infection and save downed teammates. Equipment that drops herb when a creature die and mixtape. Becca's "in the zone" so she can wipe the whole room of zombies. And equipment that increases her critical chance and critical hits. Her personal skill that debuff creatures via headshot. January's "instant" to stop Alex in spamming the room with infectious creatures. And "skill cost" variant especially for area 3 so she can't spam creatures for 15 seconds. When possible buy flashbangs and always give it to Martin to maximize his "flashy thing". In area 3 survivors have to rush destroying biocores, disable cameras , Martin has to save lots flash bangs for area 3, Becca has to maximize be vigilant on using her personal skill, every survivors has to be vigilant on shooting biocores because Alex will spam infectious creatures beside them, January has to focus on cameras.