Undocumented changes from the experimental server

It seems that the new 4x4 map isn't the only thing the devs are offering to the players on the brand new experimental server. Players have found some interesting undocumented changes listed below.

• Cosmetics(clothes) don't spawn on the island.
• Bluezone mechanics reworked. Now you can ran away from the shrinking circle even with opportunity to fire back at your opponents. Zone works the same way on the tournaments.
• New spectator mod. Which would be implemented soon and now is being tested.
• New loot system. Much easier to find a proper gun on the new map.
• Dynamic weather effects. Fog and rain have returned to the game (screenshot).
• Grenade system reworked. Now the grenade stuns the enemy.(video).