Or what about Half-Life 2: what if you could issue commands for your forces, like "medic!" "cover me!" or "attack that strider!" and your squad would actually do something useful, instead of just complain and get shot (which is about the limits of their current capabilities)?
In UT2k4 you could give orders to bots on your team by using a designation+order voice recognition thingy. If you had three bots, no matter their names, they'd have a "title" of alpha, beta, or gamma. You could hold a button, say "Beta, cover me." and "Gamma, defend.", then watch them run about to fulfill your orders. It would be nice if more developers would incorporate a similar system in single player squad based games.