Please add friends and team up to mission. booster will provide you with the necessary materials or weapen. booster can only trade 1-2 item in a secure compartment at a time, If the quantity of materials is large. please trade a few more times,and then you can put it in the safety box so that it won't fall off when you die,After putting things in the safety backpack,You can immediately evacuate(Items can be taken out of the mission in the safety pocket) . If there is too much material, we will provide it to you all at once, arrange booster to accompany you for protection, and use the key to enter the secret door for evacuation. Please do not worry. For quick transactions, please ensure that the safety backpack is open And you didn't bring any itemsand make sure to enable cross server matching