HMC Labs - Can't find the access card, batteries or are stuck? - Here is a rough walk through

  • Control Room - Battery 1 on the right side of the main panel next to the corpse

  • Activate B + C

  • B Wing - Talk to Thomas, place jack under gate, get jack lever from the room on the left of it (the room with the cages), get Battery 2)

  • Activate B + C + D + E

  • C Wing - Walk straight through to the end of the newly dug tunnel, get Battery 3)

  • C Wing - Crawl through gate, go through hatch, after diving do a 180 degree turn, climb into air duct, get files in Archive)

  • B Wing - Talk to Thomas

  • A Wing - Go to locker room, get Access card

  • (Optional) C Wing - Get Mistanite in the padded cell of Thomas

  • Activate C + D + Water Drain

  • C Wing - Crawl through gate, go through hatch, open door with access card, get Battery 4, place on conveyor belt, dive back, get Battery 4 from conveyor belt

  • Activate B + C + D + Ventilation

  • B Wing - Crawl through gate, go through hatch, open gate via button, get Battery 5

  • (Optional) C Wing - Activate C + D + E + Water Pump, go through the just opened gate, go through hatch, crawl into air duct, get Mistanite

  • Activate C + D + E + Ventilation + Water Drain

  • D Wing - Walk to end of corridor, open door with access card, walk past archive, open door with access card, go down broken walkway, climb up ladder, get prototype

Hope this helps someone!