The Unreal Tournament SDK is a collection of hardcoded Engine Enhancements for Unreal Tournament that aim to update that wonderful old game so that both gamers and level designers/mod developers may enjoy this fine game just a bit longer. It is completely Open Source, free for noncommercial use. While I know that Unreal Engine 4 is the current state of the art incarnation of the Unreal Engine this project has become a more or less private project just for fun. After a 4 year break (coding nothing since 2014) I'm lookng forward to continue the project and release the next update in 2018. So yes... it's active again, after I had a time of hardship these last years.
Yes! There it is. Volume Support for Unreal Tournament's UnrealED. Volumes are abstract spaces that define own areas within a map. They're used in newer Unreal Engine versions to change actors inside a Volume. Since volumes can be spawned and moved (unlike Zones) we can have dynamic area-based Effects like rising Water. Also the Particle Engine will greatly benefit from this.
P.S. : you might have noticed these nice orientation axes in the left bottom corner of the Editor... something I adopted from newer UnrealED versions too.