ONI agents have learned that the Covenant are developing a lethal biological agent in an underwater lab off the coast of Paradiso. A elite team of Spartans has been sent in to retrieve a sample of the pathogen in order to help UNSC scientists develop an effective antidote.

The Spartans start out in a boat hidden behind a large rock formation.

They have to wade through the water towards the docks of the Covenant facility. They're equipped with active cammo and sprint packs to help dodge fire from the Elites guarding the docks (equipped with evade and active cammo).

The fist access point is located in the center of the docks, in front of a barrier. Once this is captured, the Spartans will gain access to the foyer area.

Also, a grenade launcher and a concussion rifle will spawn in these two crates. New loadouts are unlocked for the second phase, in which the combat will be less stealth based.

Once inside the foyer, there are two possible routes the Spartans can take. . .

. . . Either take the grav-lift to the right, which will bring you to a short but relatively unprotected bridge. . .

. . . or go straight, and take the longer route, which consists of a covered bridge leading to a small building with a grav lift. . .

. . . which will take you to a platform with another covered bridge, allowing you to flank the second access point.

Both routes lead to the main facility. . .

. . . which the second access point is located in the direct center of.

Once the second access point is captured, a door will open in the back of the facility. . .

. . .allowing access to the lifts that go to the lab.

A gravity hammer is located in the round bunker at the back of the lift area.

The lift on the left goes down.

In the lab, there are two water-cooled canisters in the floor. One of them is raised, and contains a vial of the Covenant bio agent. Grab it. . .

. . . and head back up via the lift on the right.

Head back through the main facility, and through a door on your right, which will take you to the landing pad. Here you'll find a Falcon waiting to pick you up (the falcon cannot actually be used)

Gameplay Pics:

Sneaky sneaky

Dead in the water

"Hey you kids! Get off my porch!"

The water spirit attacks

"Hold on, you've got something on your neck. Lemme see if I can get it off."

Throwing nades make me happy

"Looks like someone brought a sword. . . to a hammerfight"

YEAAAAAAAAAAAHHHHH!