So after doing the math and finally getting into it, I managed to finish the part that will not be visible if this will be imported in PES, but is the part that interests me if I will manage to get this in Cry Engine. All the structure is designed to be explorable, so I can be able to "walk" in the stadium using the engine. Material used will be concrete so I can`t wait to see if I can actually make any damage to the walls :)
I know it`s not too WOW but... it`s just the beginning. The end is what matters. And I am sure I will have difficulties later and this will be modified.
Texture used are temporary as materials will be added accordingly in Cry Engine.