El canio incident

You are a police officer arriving at a site where someone saw a kidnapping. The suspects entered the city's drainage system. Find out what happened.

The shotgun has unlimited ammo, and the reload process is done in several steps, each step is done pressing R.

BASED ON REAL EVENTS! The real "El caño" is located here: https://goo.gl/maps/YZ7sDkWjdzFtL9XJ7 

This is a late entry for the #7dfps game jam. There are a lot of unfinished things and the npc ai needs a lot of improvement, but I run out of time.