Outpost 2 maps consist of a 2D grid of cells. Each cell contains a tile which is a texture pulled from a tileset image. Each tile is 32×32 pixels.
Outpost 2 tilesets are 8bpp BMPs with indexed color palettes. The stock Outpost 2 BMPs are all named well00XX.bmp and stored in the maps.vol archive file. Each tileset is exactly 1 tile wide (32 pixels) and a varying number of tiles tall.