Wrath of the Machine – The SIVA Room
After beating Vosik, The Archpriest when outside, you’ll be able to enter the raid proper. There’s a simple jumping section that isn’t too difficult. Simply follow the linear path until you make it to a small room. There are a bunch of monitors and four around the edge. Split into pairs then have each take a side.
Kill minions until eventually three bombs drop from the sky, one in each section. Have one person from each side grab the bomb, then countdown and throw the bombs at the boss at the same time. This will take off a chunk of its health. Continue to shoot at adds until a notification on the bottom left of the screen states “SIVA density critical.” When that happens, look up at the screens and locate the one that’s turned on. Shoot it to continue the phase. Continue to repeat the process until the shield is down, then do damage. At this point the SIVA notification will pop up again. Now you have no choice but to enter a one of the four rooms on the side. Look for whichever one lights up then have the whole time rush in. Break the switch to the side of the door and wait.
Keep in mind that each room is one-time use. That means you’ll have only five chances to kill the boss. Run out of rooms and you’re dead. All you have to do is repeat this process a few times and you’re all set.
For a more detailed rundown on this encounter, check here.