In the followings we will provide you some requirements, 
however we will expect you to exceed these expectations. You will need to demonstrate these in three milestones:

MILESTONES
  1) Design and develop an Entity-Relationship Diagram (ERD) that models the following
  key entities:
    a) Customers/Players.
    b) Characters.
    c) Inventory for the various weapons and armour a character may possess.
    d) Combat activities (#of kills, KIA’s, victories, etc.).
  
  Your ERD should handle the following rules as a minimum but please use your imagination to provide further rules:
    a) A player must have at least one character and can create a new character or deactivate one they no longer wish to play at any time. Once a player unsubscribed from the game, the character is also removed from the system.
    b) A player will be billed at the end of a calendar month for all active characters for any part of that month.
    c) A character can possess any number of inventory items (see Inventories.csv):
      a. Weapons: have a range, damage points.
      b. Armours: has a defence score and is worn on a speciÞc body part.
      c. Supplies: have a healing score, mana score and if consumed increase the character’s life score by that amount (after which time the character will possess one fewer of that type of item)
    d) Characters have combat info (see Combat.csv)