hi,
first of all, do not go granting random permissions to yourself. read what they do first. players should not be given permissions. do not give the raidablebases.banned permission to anyone unless you want them permanently banned from joining any raids, including yourself. this happens often :D
the most important step is that you read the documentation and get a basic idea of what the config settings are. if you don't understand something then note that down, and come back to it later when you have a broader understanding of everything else. it's not possible to understand everything at once. it's very complicated. take your time and DO NOT rush anything or you will get extremely aggreviated !!!
the most important parts to understand is how to add bases, and how to add loot. once you figure this out then you can go about configuring the rest of the plugin such as automatically spawning bases, dome settings or npc settings. you want the base to spawn, and you want it to spawn with items first and foremost.
so you are going to need to create some bases or download some off of Fortify. once you add them to the plugin then you will want to configure what items spawn in the bases.
adding bases to the plugin is very simple:
rb.config add "RaidBases" raidbase1 raidbase2 raidbase3
raidbase1, raidbase2 and raidbase3 are example names of the bases that you've downloaded. these must go inside of the oxide/data/copypaste folder. if it doesn't exist then create the folder.
you MUST install the CopyPaste plugin also. edit the copypaste config and change the "Amount of entities to paste per batch. Use to tweak performance impact of pasting": 15, value from 15 to 5. you do not want it set at 15 or it will lag your machine.
next you can test spawning the bases. simply type /rbevent in game and it will randomly teleport you somewhere and spawn the base there. bases take time to spawn, and take more time to be setup by the plugin. the larger the base, the longer this will take. wait for it to finish and it will tell you when its spawned in the game chat.
right off the bat you will realize that there isn't enough loot spawning or only a couple items spawn in each box. this is intended! it is your responsibility to add loot and determine how much loot and which loot you want to spawn. the default configuration is for demonstration only.
adding loot is very easy. view the documentation on rb.populate and follow the instructions exactly as written under the Loot Tables, Loot Priority, and Loot Settings sections.
at this point you will have edited the Normal.json loot table generated in the aboves steps under oxide/data/RaidableBases/Editable_Lists/Normal.json and copied it into the oxide/data/RaidableBases/Difficulty_Loot/Normal.json folder.
you will have also changed the amount of loot to spawn in the oxide/data/RaidableBases/Profiles/RaidBases.json profile among any other settings but keep it simple to start with! you want to get a basic understanding and not rush in head first!
once you've progressed this far it might have taken you some 3 to 6 hours and that's fine. the more familiar you become with the plugin the more easily you can do these steps in a fraction of the time
good luck :p