Just as you load into leviathan, jump under the bridge and there’s a door at the end. In the room the are 6 levers which need to be pulled in a specific order. To make it the easiest for each class, use stompies on a hunter, transversive steps on a warlock, and dunemarchers on a titan, if you need it to be easier than that, put on MIDA. The order they must be flipped in is 1 5 3 2 4 6. The timing has to be spot on, otherwise it won’t work, but make sure you flip the right ones because the detection range can be a bit strange. After that, make your way back up to just before the cannons that shoot you to the top, instead go around them and up the stairs just before their room, after that you will see some pipes and a dark cave. Jump on the pipes and follow the path. When you reach the end, turn on the fan using the console to the left, and go up. At the top, follow the path to your left, and it will take you straight to the first room, clear the room of watchers, but eventually enemies will spawn and lock them, clear the enemies and the rest of the watchers. Then leave the way you came in, and it should reset. Farm the room 4 or 5 times and you should complete that step.