Units are mostly battalions and regt.
The glossy 11x17 game map covers Burma from the Thai border to India and China and is done in an abstract style with different color hexes for different terrain types. Each hex is about 25 km. Interestingly, terrain doesn't play such a key role in the game. However, there is enough clear terrain in Central Burma for the Japanese to move into Rangoon and up the Rio Chindwin to Mandalay and points north. A bit more difficult for the Allies to push the Japanese back in the mountains near India, but jungle and the other terrain types have no effect.