Cryptid Force Six Series by Lucas Pederson

Scientists discover something extraordinary under the icy tundra of the Arctic. But when a strange distress call is received, an elite group is assembled to check on the scientists and facility. What they find will turn everything they know upside down and whatever escaped the facility is loose, leaving a trail of blood in its wake. It's up to the Cryptid Force Six to track down and stop what might very well be the death of them. In the blistering cold of Arctic, no one can hear you scream...