Speaking as someone who learned the hard way, working out how to open a GATE Security Crate in Abiotic Factor is a fool's errand in the early game. The Half-Life-inspired survival adventure teases your scientist with loot drops out in plain sight, but you can't open them for quite a while.
I mean a mid-to-late game kind of while, too—you can't open the crates until ages after first stumbling upon the first one in the Office Sector. Warren, the security guard hanging out in front of the cafeteria, quite literally holds the key to opening these, but you'll need to come up with something worth trading for a GATE Security Key first.
