Arma 3 came out at the end of 2012 to thunderous applause. It's been the focal point of many a game modification, and due to this, has achieved cult fame among first-person shooter fans around the globe. Its predecessor, Arma 2, was the basis on which DayZ was built. It could be argued that without Arma as a series, many other franchises would not exist as they do today.
All that said, Bohemia Interactive – who develops Arma 3 – wants to remind you why the game is so awesome. They've created a trailer that highlights all of the game's more nuanced details. If you haven't played the game in a while or simply haven't heard of it, then you should definitely check out the video below.
I've never played any Arma game, but it looks absolutely stunning; especially the size of that game world!