This is a "Manual Cache Extraction Tutorial," a tutorial on how to manual export or extract maps you have played online from your Unreal Tournament Cache folder.
For some maps, you will need to install the MonsterHunt gametype:
https://github.com/shrimpza/monsterhu...
Or the OldSkool mod:
https://www.moddb.com/mods/oldskool-ampd
(There are several versions to choose from)