The Sivean Empire lacks are large collection of different handheld weapons. With really only having the basics needed for "peace keeping"
The G-32 is a standard rifle capable of firing a laser that burns on impact. This weapon usually takes 2 or 3 hits to kill a human being.
The G-33 is a modified version of the G-32 for more long range combat. Essentially a sniper rifle, it's capable of firing a laser that burns on impact. This weapon usually takes 1 or 2 hits to kill a human being
The B-50 is an AT & AA rocket launcher. It is capable of firing 2 rockets before needing to be reloaded. It usually only takes one rocket to destroy a vehicle.
A Katana is given to Officers of the GA more for ceremonial reasons then actual use. It is a average Katana, nothing special about it.
The Sivean Empire has only a few artillery pieces created to do as much damage as possible
Recently coming out of testing the rail gun is capable of firing a heavy rod at eminence speeds and long distances. Capable of destroying an entire colony is a couple of shots. These rail guns are rare, but very, very powerful.
Inspired by the Davy Crochet, a artillary piece capable of firing a nuclear warhead was commissioned for use, capable of leveling an entire city in one shot, the Nuke Launcher has never been fired at other people "yet"
The Sivean Empire uses a variety of ground vehicles for a variety of purposes, usually being tracked because of the harsh jungle covering nearly the entire planet.