Part 37

Head for the checkpoint (an auto-save point you restart from on death).

Go inside the building and up the stairs to clear the room of angels. Deal with the biker shooting through the window.

Optional Skip: Climb the staircase with barrels, walk straight to the windows. Turn 90 degrees left, jump through the open windows onto the outer ledge, and across to the far balcony. This leads to a corridor full of ammo and into the stairwell normally accessed after checkpoint 4.

If not skipping, proceed to the second checkpoint.

Head through to the next room and destroy all bikers and angels shooting from outside, including the one positioned high up.

Go to the next room and up the curving staircase to the ammo room. Use this vantage point to take out external angels with the chaingun or stakegun. Drop through the windows to the next checkpoint.

Proceed to the third checkpoint. No monsters are present; go upstairs to the next checkpoint. Note the doorway at the small set of steps, as you will return here for the final secret area.

Head through to the fourth checkpoint and the stairwell. Mow down angels and bikers on the stairs and roof. Armour is located at the bottom. Killing the last monster reveals the next checkpoint. The side corridor is blocked but contains chaingun ammo.

Proceed to the fifth checkpoint. Use the chaingun, and you may acquire a Morph. Collect all ammo and clear the roof area of angels. Snipers on far roofs can be dealt with using the stakegun. The checkpoint appears on the bridge you crossed.

Head up through the building to deal with monsters on balconies. You will end up on a balcony yourself; follow the arrow to kill an angel below on the bridge. Jump off the balcony railing down to the next checkpoint.

Reach the seventh checkpoint. Skulls will appear; use the freezer weapon, dodge their shotgun blasts behind pillars, or bait them upstairs and use grenades. Many angels are also present upstairs and downstairs; use your chaingun.

Secret 4: Before heading to the checkpoint at the far end of the courtyard, check the front of the fountain for a tunnel leading to a secret area with a holy item and grenades.

Proceed to the eighth checkpoint. This outdoor area is a large brawl. Pick off bikers on barrels with stakes, then bait angels onto bridges and eliminate them with grenades. You will find a Morph and quad damage. Armour is in a box in the back left corner.

Secret 5: After defeating the last angels, snipe the bikers on the roof (the mask aids this with stakes). Run to the right, step onto the ledge over the water at the back corner, and run along the back of the long wall to find health in the secret area.

Proceed to the ninth checkpoint. This is the final area of the level. Armour is available in the end corridor to help against skulls and bikers. Freeze the skulls and use your cards if saved. Observe skulls picking up and using bikers as shields. The exit appears after clearing the area.

Secret 6: Run back through the level to the upstairs room where you hit the fourth checkpoint. Instead of going down the corridor, jump out of the window to the right of the corridor's entrance, onto the side ledge, and across to the far balcony. Quick-jump up the corner to reach the humped roof of the adjacent corridor. Stand on the raised part on either side and quick-jump to the higher tiled roof. Go to the front left corner of this roof and look over to the long balcony with the holy item. To reach it, go to the roof's outer corner nearest the holy item's perch. Quick-jump along the front edge of this roof across to the long building, timing your last jump onto the corner of the roof. Leap to the small balcony on the long building across the water, just before the wall turns inwards. Once on the tiny balcony, jump onto its railings and face the relic. Perform a standing quick-jump around the corner of the wall, hit the window-ledge, immediately jump off again onto another ledge between the window and the relic's balcony. Jump off this last ledge as soon as you touch it to reach the balcony for the relic in the final secret area. This secret is notoriously difficult and may take a long time or be impossible to reach.

After obtaining the relic, return to the exit by dropping off the balcony to the ground and making your way back.