Anyone got advice for making a Hack 'N Slash game?

Hi, I’m new here!

I’m planning on making a hack 'n slash game inspired by Ninja Gaiden Sigma and Original Devil May Cry series.

I have experience making a game from scratch using C++ & DirectX9:
YouTube video

Now I’m wondering if anyone got any advice on how to learn how to do this in UE4 mainly using C++, or know any people who could be interested in collaborating with me.

Any pointers would be greatly appreciated!