On Borderlands 2, what quest gives the Sand Hawk? And if so, do I need any DLC to get the mission, if it is given by a mission.
Straight from the Wiki.
The Sand Hawk is a Unique Submachine Gun manufactured by Dahl, added in the DLC expansion Captain Scarlett and Her Pirate's Booty. Sand Hawk is obtained from the mission Whoops located in Wurmwater.
The Wiki itself is pretty well kept and it is worth trying that first for similar questions to this.