surround sound on headphones is emulated rubbish...and for the few that attempted it with multiple drivers, is badly implemented. a good headphone known for it's sound stage and imaging will actually give you something very much like surround sound.
the most popular headphone for competitive game play is the 600 ohm Beyerdynamic DT880. they are a bright headphone, so listening to music without a warm DAC and amp, can be fatiguing, but if you want to know who is where and what underwear they're wearing, that's the headphone to get. and for the mic..most add a USB mod-mic or some sort of USB desk mic. oh yeah...it has to be the 600 ohm model, not the 80 ohm or 250 ohm as only the 600 ohm has the high sensitivity you're looking for to get that edge. the Tygr 300 is essentially a 250 ohm DT880 with a mic added...so not exactly the best, but if that's all your budget can afford, go for it.
go check out the gaming section on HiFiGuides.com forum and you'll see. just know that 600 ohms needs a lot of power to drive, so you will need a dedicated headphone amp (a DAC is good, but not necessary) and as mentioned, you want a warm amp, so something like the Monolith Liquid Spark or if you have the budget, the Schiit Asgard 3.
