Kaiju? Yeah there are kaiju. The movies don't tell it like it is though.
Yeah I've seen the movies, the giant monsters rampaging, trashing cities and swatting jets out of the air. Messy affair. Stupid as hell too.
The veritechs have stand off missiles with ranges measured in miles. Old stompy never sees the jets pelting it with explosives. But that's not the biggie, things that big don't go down from explosives that small.
When a stomper comes tumbling out of a DFE, there are two weapons we use. C'mon boy, why do you think we have flying warships with massive cannons on the bottom. Those are the Kaiju killers. Even God-effing-zilla is going to hit the ground after a 12 round salvo from a flying battleship. The other thing is that kaijus are biological in nature, they are alive, and living things have metabolisms and biology, and that biology can be sabotaged with poison and chemicals.
Mustard gas, chlorine gas, nerve gas, they are all nice for cleaning out kaiju swarms and parasites. For the big ones, there are basically kaiju sized chem darts that we can fire from jets, and these things can be packed with liters of tranquilizer, poisons, anything we want. Cesium isotope laced nerve agents are popular, the monster gets a big dose of glow in the dark death juice. Tasty stuff.
Stay frosty, we're on clean up duty, making sure that the CZ (containment zone noob) stays clear until the navigators decide it's okay. Shoot anything that moves, even if it's human. Kaiju contamination is serious. Do you know how many plagues of the last century spread because of a soft heart in a containment line? Kaiju Flu, red and blue were both released in piss poor CZ procedure.
Remember how many died because a gunner has a soft spot for a diseased girl in a torn dress.