Zara was performing long range venom spit attacks into the faces of the soldiers. It would get into their eyes and mouths and noses, the venom would take effect, and they would die. Well, first they passed out, and then they died.
There were too many for Hope and Zara to fully keep at bay. The soldiers were shooting at the girls and the girls were hiding behind a turned over marble table, but the bullets were starting to break the table down. Soon, they would either get shot through the table, or the table would break apart and leave them out in the open.