I'm Trinidad, at your service.
I've been a professional developer for more than a decade, and have experience with C++ in game development, and I already have Visual Studio 2015 installed which is needed for developing games using CryENGINE. What you mention seems to be fairly straightforward as an starting point for a game, so I see no major difficulty implementing it.
Could you please clarify me some points, just to be sure we're on the same page:
1) You need for now a basic prototype where the game starts, loads your map and shows a controllable character in 3rd person. Just that for this version, am I correct?
2) Do you have the map already in a format compatible with the CryENGINE?
3) Do you have a character already rigged and in a compatible format or will use the default one?
Thanks for your time