You say you want to avoid using horizon so you can use Modio, however it's a similar thing, it's not regarded as hacking because your downloading a map. Who's experience are you harming by downloading a map? If you want to use Modio then these are some steps as to how to find a mini game map:
1.Download Modio and install it.
2.Insert your memory stick into your xbox 360 and it will format it for xbox 360 use.
3.Put the USB into your computer.
4. On modio click open a save.
5.Click download a save.
6.Click Search.
7.Type whatever you want and download the save.
8.Take it out and put it in the xbox 360.
9.Go on Settings -> Storage -> Memory stick
10.Click x on the save and press move and move it into Minecraft on the hard drive or console.
Hope this helps and I know it's modio but I don't know any other ways, sorry:/