Let me explain the head gear since it's one of those tools that can really make or break your investigation (this is especially true during those intense hunting phases). You'll unlock three different tiers as you level up, each adding something interesting to your toolkit - think of them as upgrades to your investigation arsenal.

Starting with the basic camera feed at tier 1 (unlocks around level 13), which is actually more useful than most people realize because your van team can watch for ghost orbs while you're inside. The tier 2 head-mounted flashlight becomes available at level 49, and while it's not the brightest option out there, it frees up your hands for other equipment. The night vision goggles at tier 3 (comes in at level 82) are pretty game-changing, since you can navigate dark areas without any flashlight, though keep in mind your sanity drops faster in the dark.

Here's something crucial that might save your life - all head gear counts as electronic equipment, so you'll need to deactivate it using the special key (usually t) before any hunt starts. This happens because ghosts can detect electronic signals during hunts, and trust me, you don't want to learn this the hard way. Working as a team, you can use the tier 1 feed to spot evidence from the safety of the van, which is particularly helpful when dealing with more aggressive entities. The tier 3 night vision setup works amazingly in custom games where flashlights aren't allowed (just remember it won't help you spot those ghost orbs).