Tried it without the "space" character, i.e. UAC%5FDEAD, and it was automatically converted.  So we don't need a second redirect.    Ryan W (talk) 02:09, 24 April 2015 (UTC)

Yeah, UAC_DEAD and UAC DEAD create the same link. When the underscore is part of the title, you have to use {{DISPLAYTITLE:}}, e.g. {{DISPLAYTITLE:UAC_DEAD}} for the page header to be shown with it. --Gez (talk) 08:18, 24 April 2015 (UTC)