You may also win by eliminating the terrorist team.
In hostage rescue maps, the principal goal for counter-terrorists is to rescue hostages captured and held by the Terrorists. This can be carried out by eliminating all the terrorists, defusing the planted bomb, or (in some cases) defending the bomb site until time runs out. The counter-terrorist goal on bomb maps is to prevent the terrorists from planting the bomb at all costs. The explosive is on a timer, so once it is planted, you must defend it until detonation. The Terrorist goal in a bomb map is to perform to a certain location (marked on your map) and plant an explosive. To start, it should be understood that in Counter-Strike: Source (CS), there are many different map types.