New to gamedevelopment . Have perfect story .game engine decided but don't know where to start from?

Hey Developers and artists.I am Mohsin from heatup Studios.
We are planning to develop a first person shooter game.The engine we wanna use is Unreal Engine. We have no previous game dev experience. i bought plus membership of digital tutors but the concern is that which softwares i should study other than unreal to make our games perfect.Like 3ds max or maya or anyother . need little guideline about where to start and all that.