The password for the Mysterious Phantom Trainee Assignment has been found. As with Prospect, go to the lower left of the leaderboard page and you should see a skull. Click it and it will then prompt you to enter the password. The password is epic dream worlds.
The requirements are:
- 200 Kills with Pistols
- 20 Kills with Jets
- 2 Shotgun Ribbons in a Round
Upon completion, players will unlock the phantom paint. Remember, you have to be premium to unlock the assignment.