Besides what everybody says there is also slight difference between engines in terms how they behave. I used to be “progaming” going on tournaments in quake 3 a

Besides what everybody says there is also slight difference between engines in terms how they behave. I used to be “progaming” going on tournaments in quake 3 and then COD1 and 2. They are all on same quake engine and feel very similar with different timing. The way of the counterstrike source engine feels is different in a way i never fully absorbed. Also the gunplay is different you might have the pure aim (aim at target and click) but im CS you have to compensate for the each gun and really know them. In quake it basically shoots where you point no matter if you are running or in middle of a jump. Other games have aiming down the sights. That is a lot more forgiving and transferable skill than in CS.