Here is an idea of creating a working gatling gun.

First of all;
You know when you create gatling guns you can't time your cannon shots like when they are supposed to fire at one point, which looks like this:

You can see that the cannons are firing at an uncontrollable order, which we don't want. If we can make the cannons fire at the correct order, that will make it better.
A way to make the cannons fire in order is to use the activation groups and give each cannon its own code, which i'll explain in a sec.
So, we need to measure the rotator's angle, and give each cannon a specific angle to activate.
For example:
1. 0° 2. 60° 3. 120° 4. 180° 5. 240° 6. 300°
You get the idea.
Some people like @232287168147825 and @SnoWFLakE0s
Can get involved.
So, i think they can do it.