HST-2 (Hellstorm Launcher 2) is the elite version of the original HST-1 rocket launcher. It is a popular rocket launcher due to having up to five rocket slots available for hellstorm type rockets. It is loaded the same way as the HST-1 only having two extra slots to fill rather than only three.
"This upgraded version of the Hellstorm launcher 1 makes it possible to win the battle before it‘s even begun. One little rocket makes a world of difference on the battlefield - firing up to 5 rockets, this rocket launcher unleashes a broadside of destruction, giving a whole new meaning to the word firepower. This highly sophisticated piece of weaponry can only be equipped with specially designed rockets."