AllShots Will Be Deadly
– Extra is only available to Human Team .
– When buying an extra , you will be able to increase your damage done by zombies by pressing [ F1 ]
– The time at which the damage has been increased – 6 seconds
– How to increase the damage : You get to every part of the body of zombies , and damage increased as if you hit him in the head .
-DS Cost 
-DS Time [6 second/default]