What is wrong with editing custom pk3 files anyway?
Its like mounting the horse from its inside while moving the horse into a x-rotated 63-degree-z-axis position… just use winzip (been using classical 7.0 for years) and work out how to use it properly.
duuth that program you can download at my link is the most easyest way to make a .pk3 it has the option to save it as a .pk3 its as easy as you can make it.
just copy the stuff make a map in the program past and you put it in that way just looks like the tourial cous its made with that program.
short say packscape is the best program i no to make a .pk3 cous its easy and you dont have to rename it so its a .pk3 wats a hell of a job if you cant save it as a .pk3 right away
i hated .pk3 befor i got that program so trust me it makes a lot different now i am working longer on making a .arena file then that i am working on making a .pk3 file 