Warhammer 40K Boltgun - Playthrough Part 4

The Sanctum Magistratum level is a cathedral engulfed by the Warp. Here I discovered that the Plasma Gun actually has rapid fire, but after the magazine is depleted it requires some cooldown before it shoots again. I also found a new secret - the Vortex Grenade. It's single use, but it's incredibly powerful and has a huge area of effect. The level itself if full of portals to the point where it's confusing. I think the correct path is seeking a red emblem at the top of the portal, but at one point you have to fall down and walk on the side of bridges.

At the end of all that you face a traitor psyker. He teleports all over the place and it's a bit annoying since you can't really do a lot of damage at a time and have to run around looking for good spots to shoot him from. Much like the previous boss he summons minions to get in your way. His main attack seems to be shooting lasers at you and they are tricky to avoid, so you have to be constantly on the move. When you defeat him the Sorcerer unfortunately escapes and you continue your search for the fragment in the Corrupted Canyon level. The new bige enemies here are the Bloat Drones, which fly around and shoot rockets at you, but thankfully they are quite slow.