How do I force people to download things from my server?

Hey guys I have 2 car packs on my server, Only small ones and I want to make people download then when they join my server insted of them just seeing errors.
How can it be done?

Applejack can do it!

It’s up to the person whether they want to download the car packs or not.

Really, how do I do it!


Nvm i just uploaded it

Flap jack is the winner

could i just do like: