To begin with, it should be understood that in Counter-Strike: Source (CS), there are many different map types. These types are:
Bomb Map (de)
The Terrorist goal in a bomb map is to run to a certain location (marked on your own map) and plant an explosive. The explosive is on a timer, so once it is planted, you must defend it until detonation.
The counter-terrorist goal on bomb maps is to stop the terrorists from planting the bomb at all costs. This can be carried out by eliminating fire serpent every one of the terrorists, defusing the planted bomb, or (in some cases) defending the bomb site until time runs out.
Hostage Rescue (cs)
In hostage rescue maps, the primary goal for counter-terrorists would be to rescue hostages captured and held by the Terrorists. You can also win by eliminating the terrorist team.
The Terrorist goal would be to simply avoid the counter-terrorists from rescuing the hostages by eliminating them, or maintaining control of the hostages until time runs out.
Bomb Maps – Counter-Terrorist
As a counter-terrorist on bomb maps, your best bet (by far) is to remove the terrorist team before they can plant the bomb. Defusing the bomb makes you a sitting duck, and this is a situation you intend to avoid. Keeping the terrorists seeking to plant the bomb means you can stay on the defensive, gives you an advantage.
Bomb Maps – Terrorist
As a terrorist, your only goal is to fully overrun a bomb site. If you cannot seize control of a bomb site within the first 30 seconds, your team will likely lose the round. The best strategy would be to rush everyone on a group with the exception of 2 or 3 (tops) to a single site. One other few players will act as a distraction at one other site, and so the counter-terrorists guarding it do not come in as re-enforcements.
Hostage Maps – Counter-Terrorist
I are finding the best strategy to be spreading the team out and attacking from all angles. Coordinate a simultaneous attack if at all possible, but be certain nobody just “runs in, guns blazing,” because that technique almost guarantees death in a hostage map.
If one side of the attack manages to punch through and get inside the location under Terrorist control, the remaining portion of the team should go on to that area in order to assist the attack.
Hostage Maps – Counter-Terrorist
As terrorist, your only strategy here must be to sit and wait. Your goal is in order for them to arrive at you. Sit, Wait, and SHOOT!
Shoot a circular out of your pistol in the beginning of the match. Once you think (or hear) an enemy nearby, switch to your pistol, press reload, and quickly switch back again to your primary rifle. Most enemies will jump out and attack if they hear the reload sound, because they think you’re defenseless.
This has become a staple of counter-strike in the last years, however many players do nearly understand it. If you should be in a firefight at range, you are able to strafe-shoot to keep accuracy but still make yourself a difficult target.
The way in which strafe-shooting is done is by pressing (or tapping) the strafe key to really get your player moving and releasing it just as you begin to fire. Your player will continue to move for another step, but your shots will undoubtedly be accurate.
The AWP No-Scope
Lots of people experienced problems with this specific, and it is really so simple. A No-Scope shot is whenever you shoot an opponent with a sniper rifle without utilizing the scope. For all sniper rifles, the cross-hairs have been removed when you are not utilizing the scope, and the weapons are incredibly inaccurate. This was done intentionally to force visitors to utilize the scopes on sniper rifles. The situation with the scope is that it’s difficult to make short-range shots, and your player moves very slowly while looking through it, so you become a straightforward target. The perfect solution is to this is actually the No-Scope shot.
The No-Scope is done by just pressing the right and left mouse buttons at the same time while your intended target is really as near to the center of your aiming point as you can (you need certainly to estimate this). The scope will pop up for a small fraction of a second, and your shot will undoubtedly be accurate.
You will notice after playing Counter-Strike for quite a while that most players follow very predictable patterns. Ammunition is expendable, and any of the rifles (AK-47, M4, etc.) will penetrate through about the first 3 inches of a corner. When approaching corners that likely have opponents on one other side, shoot the corner. You will often hit your enemies before they see you.