Just how many Subject Alphas are there?

Objectives

Explored the Crucible of Eternity.

• Modo de historia
• Modo de exploración: senda del submarino
• Modo de exploración: senda del teletransportador
• Modo de exploración: senda de la puerta principal

Tiers

1. 5 : 2 objectives completed
2. 5 : 3 objectives completed
3. 5 : 4 objectives completed