This guide will show you where to find the W-870 shotgun in the Resident Evi 2 remake demo.
The first thing to do is save Marvin (and get a combat knife).
Use the knife to cut the tape and open up another area of the police station.
Take ammunition and explore a new location down to a dark corridor.
Walk forward down the corridor, then continue down the corridor you find and round the corner (first you have to walk past the two killed cops and then the zombies).
Enter the doorway to your right: on the table you will find a weapon keycard.
Exit the room and enter a new corridor.
Follow the path until you reach a small intersection, then turn left (you will find a zombie knocking on the vending machine).
Look for the door on the left side of the hall: enter the room and examine it.
You will find a locked cabinet - there is a shotgun and some ammunition inside.
Please note that as soon as you take the weapon, a zombie will attack you. But now you are ready for it, right?