What is PUBG Supply System?
PlayerUnknown’s Battlegrounds Supply System in detail
What is the Supply System? The Supply System is a free form of progression in BATTLEGROUNDS unlike the Event Pass where you need to buy a pass in order to unlock all the rewards. By completing in-game missions, you earn XP and upon filling up the ‘Survival gauge’ every time you earn both a ‘Survival level’ and rewards. Missions will get refreshed daily and weekly. 
The Supply System was introduced in the Test Server PC 1.0 update #21.
- Supply System