It's like an Aetheromatic Auger but like, cooler! ...and a bit more "russian" whatever that Garlean jargon means.
Hehehehe... 'member when BSG released an entire update themed around this thing and went as far as to feature it in the promotional patch artwork, yet it wasn't actually added to the game for another like 4 weeks? I 'member...
"A single-use 72.5mm rocket-propelled grenade launcher, designed to engage enemy personnel in open terrain, field shelters, and various types of structures. Manufactured by NPO Bazalt."
"A 72.5mm thermobaric assault rocket for the RShG-2 rocket launcher."