This mutator allows you to dodge with a single tap of the shift key.
Shift Dodge 1 - press shift while holding a movement key to dodge, like UT4
Shift Dodge 2 - hold shift and press movement key to dodge
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I am not the original author of this. I found the source code in a random thread (that doesn't exist anymore) on the Toxikk forums 5 years ago, posted by a user named Chatouille and compiled it. It never crossed my mind to upload it since I guess I just assumed it or something else like it existed somewhere.
This mutator is not configurable through keybinds, since a custom GUIUserKeyBindings extension script was not written for it. I encourage someone more well versed in coding than me to write one with the provided source code if they want so you can have free reign of what key to use to dodge.