You have made it so far... through the Hadal Blacksite, from the Beginning Submarine Room, through multiple room's, Sebastian's Shop, The "Warehouse" where there was a Searchlight... but finally... you are in reach of Freedom and being pardoned for you're Crimes.. just one more step, one more ENCOUNTER.
The Intercom would make a Chime as HQ began to speak.
"Good job, you have made it quite far, you've got the Crystal, just one more FINAL step. Easy enough, Right? you're task is simple, enter the AirLock, enter the Water, fix the 14 Wire's located in the Let-Vand-Zone, be wary as a few Searchlight's are present, Trenchbleeder Lucy has been tasked with lighting up the area to prevent parasite's from attacking you. Good luck, EXR-P."
The Intercom would end with another Chime as HQ Finished speaking.
You'd enter the airlock pushing the button before putting on you're diving mask, the Gate behind you would close, and the one in front of you would open, the chamber would begin filling up with water as you began to swim through the Let-Vand Zone, shocked at how big Lucy is, no time for that though as she'd be seen lighting up the area to prevent Parasite's from killing you.
You'd see a few hiding spot's, but more importantly, The Wires. And obviously... 1 Searchlight, though 2 more would be seen approaching in the distance. They're OBVIOUSSLY going to only come after you fix a few of the wire's aren't they? i mean it just make's sense. You're just a card to Urbanshade, a Labrat, you're Expendable.
As you began swimming and managed to fix the first wire, the Searchlight's would be seen scanning they're Light's around the area, ready to quickly harpoon anything they see into they're maw's as soon as prey is spotted in they're light's.
Better pray to the Lord you manage to fix these wire's.
[DO NOT TRY TO SWIM AWAY FROM THE ARENA OR YOU'RE PDG WILL BE DETONATED, KILLING YOU.]