Gasmasq - Most lines seem to be aimed at Rav being an internet rapper. Brief mention about LARPing, then more internet stuff with Twitter. Finisher is pretty good.
Rav - N-bombs is a nice diss, LARPing diss, philosopher diss, addresses Emergency battle, brings up Hazardous Materials but doesn't make a strong punch out of it, art diss, thug/nerd diss, brings up the mayor recording, finisher is an appropriate response to Gas'.
I really have no idea who Rav is. If I had to battle him, I'd have no dirt against him, and I can tell that this is something Gas is struggling with. He tries to incorporate personals but can't. Rav on the other hand has no shortage of ammunition, although most of his personals come from things you'd find just from checking his profile page. Even so, Rav throws more punches and edges the battle.
I'd really like to see how this would have turned out if Gas had a second verse. Also the beat makes it a bit hard to hear the rappers since it's so damned loud. Still a good listen to.