It's not exactly the Fuel Rod Cannon first introduced as a usable weapon in Halo 2, but rather a UNSC SPNKr rocket launcher that has been heavily modified by Halo Infinite's enemy faction ...

This is Halo's SPNKR (geddit) rocket launcher somehow constructed as a real ... Ok, so dragon builds are a thing now': galaxy-brained Helldivers 2 player incinerates a bile titan with a hover ...