This is a tutorial on Redirect.
What is Redirect?
The Redirect gives players that connect to your server the possibility to get all files that are required for the map that is contemporary online faster than they would in case of a download directly from the server. Therefore they are redirected to a redirect-server, which usually is a public redirect service of your server provider. Their UTclient automatically downloads .UZ packages from that server and unpacks them, automatically also, in their local UTdirectory.

Usually you will notice that a server makes use of (public) redirect if you are connected to the server after 25-50% (rarely up to 70%) of download.
Thats how you can check if the redirect works after you have set it up like following:
How to set up redirect?
First of all you need a public redirect service. Some admins might not share my assumption.. however i recommend www.gameservers.net
Youre most likely to find a host of other redirect providers via google.
Anyway lets stigg with www.gameservers.net for this tutorial.
After you have selected your redirect service provider you gotta get two important applications:

Redirect Server Checker v2.44 | 2.3 MiB - 131 hits
Please login to download the files!
Packs .unr .umx .uax .u .utx files to .uz to upload on a redirect server

and a FileTransferProtocoll - short: FTP-Client.
Run RSC… it is very easy to use and you wont face any difficulties with it.
After you have packed the all of those files you open your FTPclient and log in with the login data for public redirect. In this case it is:
IP: redirect.gameservers.net
name: upload
login/password: upload
Unlike maps/music/sounds/system/textures you will not find any specified folders for the .uz files on the redirect. Just upload the whole “shit” into the folder that your redirect service provider has arranged for unrealtournament.
Now the last but most important step in the redirect setup.
go to the UnrealTournament.ini file your server runs with and edit these lines like following:

[IpDrv.TcpNetDriver]
AllowDownloads=False
MaxDownloadSize=0
DownloadManagers=IpDrv.HTTPDownload
DownloadManagers=Engine.ChannelDownload

AllowDownloads=False ONLY if you totally rely on the redirect service.. however if it is down once and you have set AllowDownloads to False noone will be able to connect to your server.
My recommendation is to leave it with True, also exclue the line MaxDownloadSize=0 or to whatever you like to set it.. i assume theres not much i can say about that line. The other lines however are obligatory.

[IpDrv.HTTPDownload]
RedirectToURL=http://uz.gameservers.net/
ProxyServerHost=
ProxyServerPort=3128
UseCompression=True

This part is self explanatory i guess. Now fire up your UT server.
you will probably find more professional tutorials on other sites.. however i felt like writing an own one instead of just randomly posting a link or even steal a tutorial. I hope you liked it though.

Thanks to VRN|C-18!