The flashlight can be easily toggled but drains batteries when used, batteries are used to temporarily jump start devices or required for certain systems and suit operations, luckily, the batteries will slowly recharge when not in use.
Bodies by the dropship, being near traumatic things, like a downed ally or bodies lowers sanity.
Automatic door system, can be locked or unlocked by hacking or using a keycard on the control panel. Can also be welded or cut to open, close, or repair the door. Doors can be destroyed, leaving them in an open state until repaired and welded.