I tried using the railgun, it's good for clearing out large groups due to the piercing, but you run out of ammo quickly if you aren't careful. Also, the super-charged shots can set zombies on fire.
Also, the super-charged shots don't do self-damage. I'm not sure if it's a bug or intentional, but it's nice and I hope it stays.
Also, the super-charged shots don't do self-damage. I'm not sure if it's a bug or intentional, but it's nice and I hope it stays.