I want Game like fortnite Proposal idea

Hello
I want game proposal submit to the client for that
I want concept gethering and technical requirements For game like Fortnite
Please mention all this thing
1- User types.
2- Features associated with user types.
3- Administrative features.
4- Information related to systematic features such as reward points, money exchange in the form of user stories.
5 - Game plot
6 - Preference Technology

Also mention milestone timeline of this project

If project is confirm i will hire for development for same

My budget is 20$
and my deadline is 1 days