For Daring Do is easy, she is basically a grave robber already, so she just stole an artifact from a reserve or something like that. And she has attacked other ponies multiple times, her books must be filled with testimony of that since some of the temples she is going to rob must have native ponies there.



For the Wonderbolts is a lot harder, we don't know much of their characters, we only have Spit Fire irresponsible leadership, lack of awareness and poor judgement to work with. The only thing I can think of is some accident where she ignore superior orders making it worst, but that wouldn't account to the rest of the Wonderbolts, maybe they took their commander side and it qualified as mutiny?