ZERT stands for 'Zombie Eradication Response Team'
This is a really novel idea. A firearms training school in the USA primarily for civilians hence the light heartedness of the context. Many Firearms training courses are targeted towards home defense or competitive shooting or military / law enforcement applications. Well... this school.. well its training for getting rid of Zombies. It reminds the shooter that shooting is FUN at the end of the day and if you want to apply what they teach to other 'serious' applications then by all means but have while you are with ZERT lets kick Zombie ass and have some fun.