Yeah, kinda like the shotgun! As for whether the relationship is parasitic or symbiotic, nobody's entirely sure. The rakks obviously irritate the hive, but provide an important defense mechanism, too! And they don't feed off the hive as far as we're aware. They seem to prefer the local bandit population as a food source, even though the bandits pose a greater threat to them than most other things on the planet? Because guns. And buzzsaws. And throwing axes. And the occasional flamethrower.

[ Sigh. Pandora sure is a heck of a place. :') ]

And, well, I wouldn't call myself an expert. But there wasn't much for me to do in the bunker for a really long time, and I had access to all Hyperion's files including weapon schematics and specifications? So of course I used to check those out. And corporate spying is always a thing, so I got to peek at some other manufacturers' things too, and then when I was charged with watching the vault hunters I got to see it all in action and you kind of have to gain an appreciation for weaponry when you see it used well, right? Like freaking poetry, except not lame.