Can I create paths that are being constantly moving

Hi guys
I will try an explain this a bit
I have created a 2d space shooter in which the camera is constantly moving along the x axis.
My background elements, once out view of the camera simply flip back in front of it to create a continually scrolling background.
I have then create a few paths for my enemy objects to follow along.
I then added a script to make these paths move with the camera along the x axis.
The problem is that when I instantiate my enemy objects they only follow their paths at the original positions where I create the paths and not where I am at that point in the game.
I used this tutorial to create my paths Unity Movement Paths Part 2 - YouTube
I hope this makes sense to someone?

 

Try something like this:

 

@Cornysam thanks.
however I have managed to get a bit further resolving my issue kinda. But now I have another problem that's confusing me. If you watch the video in the link below here. I spwan 1 Boss enemy but some how end up with 2 on the screen.
I think he second one is blocking the first I'm not sure yet. I need to figure out why I have 2 Boss enemy's instead of 1

 

I have now manged to resolve this issue thanks for the help anyway