He has wanted a PC for a while now and can finally afford one. His budget is $550. I have made him a build that I think is good enough but needs some critique. He will be gaming on this PC only. Games would include Arma II, Arma III, DayZ, Minecraft, Battlefield 3, and Battlefield 4.
Build-- http://pcpartpicker.com/user/TrivTrav/saved/1Zxs