Stolid

What this mutator is
This is a proposal to become the new base movement in the standard game as a point to start tweaking from. This mutator changes the movement in such a way as to match UT99 properties. This doesn’t just include speed, height and length, but also duration of jumps and dodges as well as dodge delays.

What this mutator is not
This isn’t a way to go back in time or to say UT99 is superior. It’s not a 100% emulation of UT99, all the new ways to move like walldodge, wallrun and kneeslide are still in.
This also won’t magically make old ported/remade UT99 maps play perfectly. If a map is scaled by a different factor than this movement, it will be out of scale by that amount.
 
Using it
Put the file in Documents\UnrealTournament\Saved\Paks\DownloadedPaks folder. Create it if it doesn't exist.
Create a game from the menu. Go to the Custom tab.
Select the Hardcore Movement mutator in the list and move it to the right.
Click Play to try this movement out offline

Or add
?mutator=/Game/Stolid/Movementv01/HardcoreMovement.HardcoreMovement_C
to the (server) command line.
 
Official UT forum thread
https://www.epicgames.com/unrealtournament/forums/showthread.php?21750-Great-Rescalening-a-quot-new-quot-movement-base