Forget fancy spaceships, the real exploration is done once boots hit the planetary surface. Well, those boots don't want to cover the entire surface on their own, so that's when something like the Tigress Exploration Vehicle comes into its own.

Basically, it's a well-designed personnel carrier. It's not really for combat (beyond perhaps delivering troops to battle) but there are a few optional extras if you really, really want to fight using it. Primarily designed for use in atmosphere, although there are various filtering options available when that atmosphere is not breathable, it can be fitted with an airlock but is not really designed for hard vacuum.

There are good descriptions of the interior and exterior, a nice write-up of the history of the design of the vehicle and some commonly-found variants, and some nice illustrations including variant interior configurations. The whole is marred by a lack of proof-reading which makes a lot of it quite jerky and difficult to follow, sentences that just

Like that, don't actually reach their conclusion. Clean it up, and this would be an excellent product: put up with it and you'll still find it useful when your characters wish to explore pastures new.