Sorry for my late answer.
This script should do the trick :
local net = require "net"
local compression = require "compression"
-- download a file from an url, in the current directory
print("Downloading...")
local client, response = await(net.Http("https://files.digitalcombatsimulator.com"):download("/userfiles/8f8/zvqj0jc48gpflmo2xgf2hrvyqqi40fye/Rubys_Raiders.zip"))
-- checks if everything went right
if response.ok then
print("Unpacking...")
compression.Zip(response.file):extractall("path/to/where/to/extract/zip/file/")
end