Need help on implementing a shooting aspect into the 3rd person blueprint

So I am a student at Staffordshire University and for one of our modules we need to create a game.
We have been struggling to implement some sort of shooting for the 3rd person project.
I am currently learning to blueprint but I am struggling to figure some stuff out.
I am not asking for someone to build a game for me obviously, and because we have come to this problem, the project has hit a stand still.
Alls i am asking for, is if someone is familiar with this process, if you could please help us out, because its getting frustrating.
I have tried many different tutorials but they all seem a little outdated now

Thanks for any help given