SHOTGUN / GM 79 GRENADE LAUNCHER
To get the shotgun (with Leon) or the GM 79 Grenade Launcher (With Claire) you simply must get the spade key from the first room on 3F, open the East door on the 2F Main Hall and go to the Art room, here pick up the WEAPON LOCKER KEY CARD and use it on the locker at the back of the Supply Deposit Room.
LIGHTNING HAWK / MQ 11 SUBMACHINE GUN
To get the Lightning Hawk (With Leon) or the MQ 11 Submachine Gun (With Clair) we must unlock the armory at the back of the S.T.A.R.S Office, to do so we must fist combine the RED BOOK (that you get from the library) & THE STATUE ARM (In the Art Room) and place the arm and book on the statue in the Art Room, take the GEM out of the Scepter and combine it with the BOX that you find later on in the Observation Room, from this box you will get a BADGE, examine the Badge and discover that it is a USB device, now simply take the USB device to the PC in the S.T.A.R.S Office and open the door!
JMB HP3 PISTOL (CLAIRE)
This weapon is exclusive to Claire’s Story, the first thing you must do is get the BROKEN CAR KEY from the yellow box in the Firing Range, the in the Parking area examine the key and press the Unlock button to open the trunk of one of the police cars with the pistol inside.
CHEMICAL FLAMETHROWER / SPARK SHOT
You can get these weapons in the Sewers (Supplies Room), just remove the queen plug, the go up stairs get the King plug, jump down, insert the Queen plug then go through the door and insert the King plug near the weapon for the door to open.
ANTI-TANK ROCKET / MINIGUN
You will get these weapons automatically during the final boss fight with each character.
M19 PISTOL / QUICKDRAW ARMY REVOLVER
These weapons are in the very first room you can enter on your 2nd run (B Scenario) depending on who we are controlling.