Chests

[datbunneh]

Have a few questions about chests:

1. Are they shared (if someone loots it another person has to wait for a respawn before looting it)?
2. Are they relootable or you can loot a chest located at a specific position only single time?
3. Is the reward random or you get a specific items from a specific chest?

Thanks in advance! I'm sort of a completist so I'm wondering if I have any reasons to hunt for every single chest. The other possible reason for hunting is getting gear which boosts my character as soon as possible.