How do I make a swimming character in Third Person?

so i understand the unreal team does not believe there is an issue with this but i assure you there is as Tessa’s tutorial does not work for us any other person know a possible work around. the most recent thing i tried was adding a force move commander for moving character up and down but its very sloppy and requires constant tick checks. a cleaner way to do this would be nice unreal team.