I've played CS1.6, CSS and CSGO. I've played them all with headphones ranging from $50 to $1400, 5.1 and Stereo. The handsdown best headphones for CSGO etc, is a high quality stereo set. AD900 were good, T90 were good, HD600 not bad, HD800 were exceptional. At the moment I often use MrSpeakers Aeon set and I hear everything. I hear everything that others dont with their $100-$400 gaming headsets. And not just hear, but pinpoint. Just give a budget and we can aim for best stereo setup. DAC needs to be up to scratch too though.