Yes, of course.
Spike used a Jericho 941.
that all depends on the gun. all guns have a different firing rate.
i believe it was a nickel plated Jericho 941.
It varies - you get critical hits by mastering a gun. So go with a gun that you have used a lot and has a high firing rate.
You can do Accuracy, Distance, Firing Rate, or other ideas
A firing squad?
You're probably thinking of the M134 'Minigun', which is capable of firing at a rate of 6000 rounds per minute.
gun shop, gun show
its a gun thats why
no
A Paixhans gun is an early naval gun for firing explosive shells.