To find blueprint locations in STALKER 2: Heart of Chornobyl, you can follow these detailed steps:

### 1. **Northern Coast of Wild Island**
A hidden bunker surrounded by toxic waste barrels along the water’s edge. Nearby, you’ll find a crashed barge. Be cautious of Burer’s, powerful enemies that use gravitational powers to shield themselves. After dealing with the Burer’s, head inside the bunker. You’ll find a stash on the ground beside a deceased Sanya Pitman. Inside, you’ll find the Aramid Lining Blueprint among other supplies.

### 2. **The Lost Boys Side Quest**
The Lost Boys side quest in STALKER 2 offers a Rubber Layer Blueprint if you choose to take the Ninth side. Here’s how to proceed:

– **Start the Quest**: Begin by finding Mastiff’s missing group of looters in the Lesser Zone.
– **Meet Max Saturday**: Max will inform you that the Monolithians took Mastiff to his Haunted House.
– **Travel to Ninth’s Place**: Head towards the Ninth (Monolithian) place. He will explain that he is no longer Monolithian and brought Mastiff to keep him alive, and the poltergeist killed Mastiff’s men.
– **Choose Ninth’s Side**: Decide whether to trust Ninth or not. If you choose to trust Ninth, you will earn 500 extra coupons and the Rubber Layer Blueprint. If you do not decide to get involved, Ninth will fight against the Dew and end up dying, earning you 1000 extra coupons but no Rubber Layer Blueprint.

### 3. **Interactive Map**
Using an interactive map can help you locate specific blueprints and stashes in the vast open world of STALKER 2. Here’s how to use it:

– **Access the Map**: Use a community-made interactive map to navigate The Zone.
– **Search for Specific Items**: Type in the name of the blueprint or item you’re looking for in the search bar to find its location.
– **Explore Regions**: The map features 20 different regions, each filled with various locations including faction bases, bandit hideouts, mutant nests, and anomaly fields.

### 4. **Additional Tips**
For more detailed information on finding blueprints and using them effectively, you can watch guides that often provide tips on navigating anomalies, using technicians to upgrade gear, and locating specific blueprints like the Rock RW Stock and Death Cave.

By following these steps, you should be able to locate various blueprints in STALKER 2: Heart of Chornobyl.