Secret Locations Better - Zombie Shooter 2

Check the "dead ends" of the parking lot. There are hidden crates tucked behind stationary trucks that contain armor and a weapon upgrade. Mission 6 (The Underground):

That +10 HP fragment from level 1 seems small, but stacking all hidden fragments across all levels gives you +70 HP. That’s the difference between a two-shot kill and a five-shot kill on Hard difficulty. zombie shooter 2 secret locations better