However, some particular types of unit or character are limited.

Some colleges were host to more than one type of unit.

It is not known if this type of unit was used on the line in its early years, but presumably so.

Once this change occurs, older unit types cannot be created.

Some units are specialized to only be able to attack a single type of unit.

The exact organization of a company varies by country, service, and unit type.

These analysts work with every type of unit including the military's top secret units.

To use them you have to control a monument where that type of unit can be trained.

Second, players can only add units to their army if they have recruited that type of unit.

Each type of unit has its own special capacities and weaknesses.