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Unknown Caller
Control Ultimate Edition

Unknown Caller

Complete the Unknown Caller mission in Control Ultimate Edition, finding collectibles like Travel Costs and navigating the Communications Dept.

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Complete the Unknown Caller mission in Control Ultimate Edition, finding collectibles like Travel Costs and navigating the Communications Dept.

Walkthrough
  1. 1
    Leave the Board Room, turn right, and go through the doors towards the Cafeteria.
  2. 2
    Grab the contents of the Loot Container at the top before going downstairs.
  3. 3
    Ignore the level 1 door to the Security Room for now.
  4. 4
    Leave through the other door and deal with the Hiss Guards outside the office.
  5. 5
    Grab the contents of the loot container and find the Travel Costs collectible on some filing cabinets.
  6. 6
    Leave the office and go down the steps towards the Cafeteria, avoiding the corridor to your right which causes damage.
  7. 7
    Defeat the five Hiss Guards attacking you at the bottom of the stairs.
  8. 8
    Look behind you from the bottom of the stairs; climb onto the bannister and scramble up to a ledge to find a loot container.
  9. 9
    Jump back down and walk forward a few paces from the stairs, then turn left to find a Shelter.
  10. 10
    Find the Havana Summary case file on the seats in the Shelter (note: the Shelter is full of Mold and cannot be entered).
  11. 11
    Return to the Cafeteria and head towards the other staircase.
  12. 12
    Look in the ladies' toilet to the left to find the Unstable Area Notice on the floor.
  13. 13
    Enter the gents' toilet on the other side to find a loot container.
  14. 14
    Head through the doors towards Dead Letters.
  15. 15
    Go a short distance left to find the Machine God collectible on the floor.
  16. 16
    Across the way, three guards will be floating; shoot one to initiate combat from a safe distance.
  17. 17
    After defeating the guards, head down the stairs, turn around, and go underneath to find a loot container and the Singing Fish collectible.
  18. 18
    Look in the office on the right for the Trench: Dead Letter Approval collectible.
  19. 19
    The office on the left contains a loot container.
  20. 20
    Go down the stairs here to trigger more guards, including one protected by a shield.
  21. 21
    Defeating the shielded guard unlocks the Hiss Barrier research.
  22. 22
    Head up the stairs opposite the defeated guards.
  23. 23
    Before cleansing the Control Point here, enter the nearby office and interact with the TV to learn about the Floppy Disk.
  24. 24
    Cleanse the Control Point.
  25. 25
    Go back downstairs because the realignment of the area has made two more offices accessible.
  26. 26
    In the office on the right, find Book Club: Penny on a filing cabinet and interact with the TV for Missing Momma.
  27. 27
    In the office on the other side, find Dead Presidents on a filing cabinet.
  28. 28
    Return upstairs and go through the door towards the Communications Dept. (note the level 2 door).
  29. 29
    Go up the stairs in front of you and claim a loot container at the top.
  30. 30
    Go back downstairs and continue further to see a man fly through a door marked "Pneumatics".
  31. 31
    Go through the door the man exited.
  32. 32
    Sprint through the area as objects are being flung at you.
  33. 33
    Go left and down to find a door leading to a room with a loot container.
  34. 34
    Leave that room and sprint across the open area to the stairs opposite.
  35. 35
    Note the level 1 door to your right.
  36. 36
    Head up the stairs and cross the gantry at the top.
  37. 37
    Go down the stairs to find the 8" Floppy Disk Object of Power.
  38. 38
    Interact with the Floppy Disk to cleanse it, returning you to the Astral Plane.
  39. 39
    Pick up one of the cubes and launch it at the wall blocking your path.
  40. 40
    Head through the opening and launch a golden cube into the hole on the right to create a bridge.
  41. 41
    Cross the bridge and kill the eight enemies by launching projectiles at them.
  42. 42
    Return to the real world, unlocking Paranatural Powerhouse.
  43. 43
    Deal with the Hiss Guards invading the room, some of whom fire rockets.
  44. 44
    Use your Launch ability to destroy them.
  45. 45
    Examine your collectibles to find the Floppy Disk Objects of Power entry and the Hiss Demolition Expert and Hiss Ranger Hiss Research entries.
  46. 46
    Back outside, defeat the remaining enemy.
  47. 47
    Go right to the Shelter, grab the loot container, and the Book Club: Samson collectible from the floor.
  48. 48
    Return to the junction and follow the sign towards the Mail Room.
  49. 49
    In the sorting office on the right, find a loot container.
  50. 50
    As you leave the sorting office, Hiss Guards will assault the area.
  51. 51
    In the sorting office on the left, find a loot container and the Tommasi: Willow AWE Outcome collectible on top of a filing cabinet.
  52. 52
    Continue towards the Mail Room.
  53. 53
    Find a Clearance Level 1 card next to a body leaning against a cabinet to open the level 1 door.
  54. 54
    Claim the Control Point near the Mail Room.
  55. 55
    Return briefly to Pneumatics and open the level 1 door to find a loot container.
  56. 56
    Look on the console for the Havana Supplement case file.
  57. 57
    Return to the Control Point near the Mail Room, head up the stairs, and enter the Shelter to find a loot container.
Tips
  • You will take damage if you venture down the corridor to your right immediately after leaving the first office.
  • The Hiss Barrier research is unlocked after defeating the shielded guard.
  • The Floppy Disk Object of Power is located at the bottom of the stairs after crossing the gantry in the Pneumatics area.
  • The Unstable Matter trophy is awarded for killing 50 enemies with Launch.
  • The Proper Handling Procedures trophy is obtained by using your Launch ability to throw a grenade or rocket sent your way, requiring investment in the Launch ability tree.
  • The Multi-Launch ability, available in the Ultimate Edition, allows you to Launch multiple projectiles at once. Hit three enemies with three launched projectiles to unlock the Multiple Applications trophy.

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