ShellShock Live - Star Players

What are star players and what do they mean?
Well star players are to be considered as ''Prestige'' in ShellShock live ranging between 1 and 5 stars. How much XP in needed to reach each star?

Examples:
1 Star requires - 1 Million XP
2 Stars requires - 1.5 Million XP
3 Stars requires - 2.5 Million XP
4 Stars requires - 5 Million XP
5 Stars requires - 10 Million XP

Only players that are lvl 100 and have one star are allowed to participate in this group. Anyone can invite a level 100 to this group providing that they have at least one star, Not just the group owner :)