need some help with this things

Hello everyone. I have a multiplayer FPS game created using unity version 5.4.1(32bit) I need some help with this things:

1- Battle Mode System: i need to create modes of battles,For example: DM mode(Death match),TDM mode(Team Death Match),CTF mode (Capture The Flag),CP mode (Capture point)

2-Battle System: I already have battle system that i can create battles how i can add a map list and mode list?beforce i create a battle i want select what a map to choose and what mode to choose and how many players in the room

3-Garage System: i have a character that can be edited and upgraded and some weapons. how i can put those kind of characters and weapons to the garage that can be equiped beforce i go into the battle? and how i can change character and weapon inside the battle? and how to upgrade parts of thr character and player

4-Money System: i need two kind of money in my game for buy and upgrade(charcter and weapon)

5-Chat System: i want the players chat in my game

6-Save data: players in my game can register and login in the game but it will not save the username of who register, for example: in the same map can be found many users with the same username how i can fix this?

7-Load and Edit Data: when a player Register i want know who is he/she,his/her password,his/her Money,his/her weapons etc....and also edit the data and

8-Spectate Battles: i want to spectate the battle were created in my game

9-Ban(Banned)Players: i want Ban player who will breake the rules