Dying Light bootleg

I'm Desmond. My parents got me two games last night: Dying Light and Red Dead Redemption 2. They probably spent the rest of the money on something less-than-legal. Whatever. I don't really care about what they get up to anymore. I open the case for Dying Light, and find the disk to just be blank with "dying light" written on it in black marker. A bit sketchy, but my parents probably got it (heavily) used.
I put the Dying Light disk into my PS4 and start the game.
It quickly starts up. I'm excited. I've seen videos of this game, but I haven't played it before. Once the game started, it seemed odd. The start of the game didn't start with the "Awakening" mission.
Instead, it began with the protagonist getting out of bed, in a heavily barricaded room. An objective showed up on screen, reading 'Wait for the radio call'. The quest was titled 'Observation'.
Dialogue began to play, and I heard the protagonist speaking with someone over the radio.
"Hey, you coming or what?" A voice similar to Rahim's said.
"I just got up, cut me some slack." The protagonist said, with a quite heavy british accent.
"Alright, sleepyhead. Just get here before sundown."
The call ended, and I walked up to the second floor of the building. After slightly opening the door, the protagonist shielded his eyes from the sunlight, before fully opening it. It was covered in wooden planks, faintly spray-painted yellow. A simple text prompt appeared on-screen.
Press LB to kick.
I did as the text advised, breaking open the barricade, revealing an area reminiscent of Old Town.
Another prompt appeared on screen, reading 'Press □ to pick up weapons.'. 
Nearby, in front of a dark tunnel, was a Tanto Machete with a Poison damage modifier.