The Insurgency Sandstorm is a rebuild and complete version of Insurgency. Those who know Insurgency will feel pretty familiar with this game. They have added several cool features to the old game which make this one a new experience.Plus the graphics are more detailed compared to the old game. They also have fixed many remaining bugs and exploits from previous game in this one which make it more enjoyable. It is also notable there are still some small bugs in the game. But they are actively working to make it better. I recommend to everyone to try it at least.