I want to buy a mouse for play CS:GO,ARMA,DAYZ and more games any ideas? 
Whats your budget? I use a Razar Tapian mouse, and love it, use it for many games 
Razer Deathadder. It’s what I use and I love it. Lots of other people use it too. It’s a great mouse for gaming, plus it’s super comfortable.
Seconded