Na thats not how it works these days. In the old days of the C64 everything was made using code. Sound, gameplay, graphics and so on. Its not like the matrix where you see a guy in front of a computer screen with flowing lines of code. Yes people still do code using C++ but everything else is much more visual based. You can see the characters that you can put in the game regarding their meshes. There’s no adding code to put them in a virtual environment. What ever they are contained in, blueprint or spawner you drag that object into the game. Whether you are making a game for VR or a 2D screen the process is the same. For a better idea look at the below video.
[video]Unreal Engine 4 Tutorials - Tutorial 4 - How to add Basic "Ai" Enemies or enemy - YouTube
To add a player character look at this video.
[video]Unreal Engine 4 - Setting Up the Character (Part 1) - YouTube
I don’t work with C++ myself but if you insist on having code that represents putting a player character into the world then I’m sure there is someway to reference the player character blueprint and add him using C++. I don’t know if that process is so drawn out that no one would use it over the other methods or whether its easier. Someone who works with C++ might be better to answer that than me.