TC's license system was introduced to link certain game functionality
to licenses. Only a license holder can access certain functionality in-game.
The license system is very extensible and also covers less important licenses like DJ.
Some of the licences don't even have any game-funcionality at all, they rather just exist to link badges
to them e.g the Gumball-badges or Team-badges.
COP / MED / RES / TOW
Playing certain roles on TC requires you to own a particular license e.g if you wanted to play as COP, you'd need to own a valid COP-license.
Currently, the following 3 roles require a valid license:
In these cases, the licenses basically prove that you are qualified for the role
and have the knowledge that is necessary to play it.
To obtain either of these licenses, a written test
must be taken. These licenses also have a limited validity (usually 1 year). After that, the license lapses and a new test must be taken. This is to keep everyone's knowledge on a high level.
Possible future use
Since the system is very open the possible scenarios are possible:
Directly buyable licenses that enable new functionality
System-granted licenses that enable new functionality, ie as a bonus