User blog comment:.Rakle./Monster Hunter Online Information Blog Post/@comment-93.103.44.122-20130420203832/@comment-4009941-20130421070537

There is weapons that use electromagnetism on MHFO there is even a SNS that is a spike ball heild only by a magnetic hilt, using this the sword reachs farther than average SNS as it is floating in the air swing in cammand following the hilt and the shield is rocks that are in the air and collect to make a shield to guard so they do have some advances and on top of that the ancient technology of MH is way more advanced than their modern tech so it is possible to find a way to build in the ruins.

Its not like we know all their tech, in fact we don't even know what type of technology the royal capital has. Or the technology on the other continents.

Its said they used something called Dragon technology used in weapons in the game like guns that fire Dragon shots, Fatalis weapons, Rustshard weapons and the LS Atlantica.

This lost tech is hidden or died out in the ruins across the MH world so I have no idea to say they used it or not.

Oh and we have no idea how long it takes before those vehicals break down in game anyway.

And another note alot of monsters flame sacs use coal.