Je crois avoir trouvé la solution :
The Vault is located in GPGnet. You need to be logged in to your account and you need to have a valid key of either Supreme Commander or Forged Alliance with your account. Plus you need to have GPGnet configured to use either Supreme Commander or Forged Alliance. If you are logged in to GPGnet you need to be in either Supreme Commander or Forged Alliance mode. Then you will see an icon on the bottom that looks like a Vault.
Mais est-ce qu'on peux me confirmer la partie : "you need to have a valid key of either Supreme Commander or Forged Alliance with your account"