Discovery is a 2 player map for StarCraft.
A single path joins the two bases, making it hardly an issue to 'discover' the enemy. The resource field in the center is likely to be contested. Due to the closed in nature of the bases and that many resource fields are joined, air support is not so big an issue, but can still be used to advantage, the elevated areas allowing effective attacks from long-ranged units (eg. siege tanks and guardians).
StarCraft Enlarged Map Images. StarCraft Compendium. Accessed on 2008-23-08