Vanguard medal

In order to celebrate its year 3, Ingress issued the Vanguard medal.
Here is the official announcement by Ingress.
Tiers will be assigned depending on the level reached by December 1^st, 2015 as follows:

• Bronze: level 3+
• Silver: level 9+
• Gold: level 13+
• Platinum: level 15+
• Black: level 16