Yes to all questions.How are modded lobbies created ? Can I create one? My xbox needs to be modded in order to create GTA Online modded lobbies ?
Yes to all questions.
You will definitely need a modded Xbox and you can check out the GTA V modding section, where you will find the right tools to help you host modded lobbies.
If you are looking to mod your Xbox, I would suggest checking out the following sections.