If you held off on buying the Bolt Thrower, it will now be sold at a discount price, and might be worth picking up for this chapter and swapping the rifle out for, as there are more areas ahead with limited visibility. The Merchant has a few new wares to sell this Chapter, as well as the usual tune up and repair service. You can also find a File - Merchant Tip: The Prudent Choice on a table, and a Request - Viper Hunter, that will reward you for selling Vipers like the one you found in that crate, so be sure to sell this one. The Merchant is waiting for your just outside, and there’s a ton of barrels to break that he won’t mind you taking a crack at. Besides the incredibly huge and disturbing skull, be sure to inspect both sides of the table for a File - Illuminados 4:9, and a case with a First Aid Spray, plus a drawer by the door leading out.