gun control script?

[Dogmeat]

I like to use large spinal mounted gun groups (railguns). One of the problems in the game is how all guns in a group all fire at exactly the same time. This leads to them all hitting the shields at once. The shields fail spectacularly, but any excess damage is still absorbed by them in the blast and negated. It takes a second shot to kill the hull. Is there a way to script the guns to fire with a tiny delay between each one in the group?? I have to do this manually atm. 

 

I have no LUA skills.