Hi , i would like to know how can i do it on my server 2x barrels , creates loots , for example my server is 2x and when i want to breake barrels i want to get 2x scrap and 2x rope which plugin i can use for this? Thanks a lot

Hey!
U can try using Loot Plus. Create the needed containers entries, use Modify mode and use Rate 2.0 and amount -1 for all (global) items or the needed ones.

thank you very much sir! , may i ask 1more question , im trying to make a map 3000size but when im +server.size 3300 +server.seed 704649489 editing my cfg like this its not being 3300 size always being 4k map how can i fix this ?

It's server.worldsize not server.size

Gather rates -> https://umod.org/plugins/gather-control
Event multipliers -> https://umod.org/plugins/timed-events

Looting:
https://umod.org/plugins/better-loot
https://umod.org/plugins/fancy-drop
or
https://umod.org/plugins/simple-loot

Thank you guys all. I will try this plugins :)