I don't exactly remember what the Maquis had done in DS9 prior to Voyager's premiere. Had they turned into a crazy mass-murderers yet?
Yes and no. Unlike Starfleet, they didn't have a book of rules that they followed. They were a group of very different people. Some were very mild mannered, like Chakotay, and others were blood thirsty killers, like Suder, Jonas, and Seska.