Below is a guide on essential gear you’ll need in order to explore certain areas.
Biohazard Suit
Complete The Biohazard Suit side quest.
Coldzone Suit
Complete The Coldzone Suit side quest.
Heatzone Suit
Complete The Heatzone Suit side quest.
Klawbar
Complete The Klawbar side quest.
Oxygen Suit
Complete The Oxygen Suit side quest.
Radioactivity Suit
Complete The Radioactivity Suit side quest.