After clearing the second room, follow HUNK down the corridor to reach the next group of enemies. Along the way, as you approach the exit from the corridor, search for a Green Herb to restore any health you may have lost, along with some ammo to refill your weapons. Search between the two computers here to find another piece of Intel. Grab it and follow HUNK to the next combat section. Sprint forward and take cover. Pop out carefully, take careful aim at each enemy’s head, and put them down. Mow down all of the enemies in the room to continue.
Head down the passage to the right at the end of the area. When you reach the first crossroads, look up and towards the right, over the door, to find another Security Camera that you can shoot down for more experience. Follow this right-hand path past all of the locked doors to reach an Ammo Locker, an Incendiary Grenade, a Frag Grenade, and a First Aid Spray item at the path’s conclusion. Turn around and follow the path back to the main path. Follow the main path ahead and down the stairs to the lower level. The alarms will begin to sound as you descend the stairs. You will find yourself in a sort of lobby area.
Before you go running out of this area, there are several collectibles worth picking up, including the elusive Raccoon City Mascot collectible. First things first, though, grab the Intel inside of the chamber, then head to the back corner of the room, across from the stairs. Tucked away in the back corner, by the open metal fence, is the Raccoon City Mascot. This valuable item will earn you a whopping 350 experience points when you pick it up. Return to the atrium to find HUNK waiting for you by a locked door. Look up and shoot the Security Camera sitting over the door before following him through.
Run down the hallway to reach Birkin’s lab. There are three different Intel items located in the lab, on the various desks on each side of the room. Pick each of them up, then head to the back left corner to find a Laptop. Interact with the Laptop to upload all of the Intel that you have discovered in the level thus far. You will earn a healthy amount of experience points and pick up some concept art to boot. Look at the wall over and to the side of the Laptop to find yet another Security Camera that you can shoot down.