I made this video to help players earn some Hunter masks;

https://youtu.be/Fx1oVpXocnY
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There are 5 "generators" to interact in order to spawn Camo;
Can be done in night time (21:00 to 06:00);

0:00 to 1:39 / Interact with a touchscreen
1:39 to 4:59 / Press the button
8:19 to End / Turning on orange generators (Hunter Fight)