Steam page: http://store.steampowered.com/app/202970/
Black Ops II is the first game in the Call of Duty franchise to feature future warfare technology and the first to present branching storylines driven by player choice as well as selecting weapons before starting story mode missions.
It is also still $89.99 USD on the Steam page so this is a little cheaper :P
I did think it was under $50 with code at GMG, this seemed pretty good so have grabbed a copy for myself.
Just sharing :D