Each team has a mission and they have to complete it to win the game.
The same applies to terrorist team.
Instead of spending time on hunting down enemies, they should plant the bomb when the time is right.

The instant the bomb is planted, enemies will focus their attention on the bomb location.
They will concentrate their attacks to that place.
The situation above often happens in public servers in which players from all over the world join the game.

Since the players do not know each other, the teamwork is rarely ideal.
Many terrorists even hide until the time limit ends instead of going all out to complete the mission.
Typically it is because either fear or wanting to keep their guns for the next round.
In each round players can buy guns.
There are several guns but not every gun is available for purchase.
It depends on how much money a player has.
In the hands of an expert, one shot is enough to take down an enemy.
Many players find themselves hard to stop even after hours of playing.
When they die in a battle, they are always tempted to play one more round.
It is pretty easy to lose time when playing this game.
The system requirements for playing Counter Strike are lower than todays standard.
Just see to it you have a good internet connection to join a server.
Playing it in offline mode is possible with bots but it would probably be too boring.