The Bandit, Raider and Burglar achievements can be obtained by checking your treasure maps and making sure you listen to the Merchant when he warns you there is no going back once you hit certain points in the story. There are achievements associated with sniffing out every piece of treasure in the game, each of the three areas has its own achievement for acquiring each treasure on a single playthrough.
Resident Evil 4 treasure: Astute Appraiser achievement There is a visual guide to the Gemstone Bonuses in the gem inlaying menu.
