Units are platoons and sections and the player controls up to a brigade sized force.
Contrary to other reviews, ToP is not a difficult game to play and after a very short time the interface will become quite intuitive. Almost any command can be given with a couple of mouse clicks or the press of a hot key. This allows the player to spend more time on tactics then on remembering how to use the game interface. ToP even includes a very detailed rulebook that explains the how's and why's of everything. The heart of the game is the command system.