I was exposed to it, sometime in year of 2000, it was demo of one pc magazine. I was 10 at the time. This game defined my love for tactical shooter games. I play Swat 4 more, mostly because of graphics work better. But Swat 3 has better gameplay mechanics that I feel are missing in S4.
I have been following "Ready or Not", hoping it will be more like SWAT series.... Game market is handicaped by not having these kind of games.