As an ODST of the UNSC, I was in the Human-Covenant war, I was deployed to Earth, other planets, The Ark and Halo rings. I have collected a few Covenant weapons as memories of battles or success.
Jiralhanae Weapons:
Type-25 Grenade Launcher, "Brute shot" for short, this was used by the Brutes, or the Jiralhanae, during the war, mostly used by Brute captains, or jump pack Brutes.
A Type-52 pistol, also called the "Mauler," it's a shotgun, even though it's revolver design. Also used by the brutes during the war, all the brute ranks/classes used this, besides a Chieftain, and/or a War Chieftain.
A Type-25 Carbine, also known as the "spiker." The name says itself, but it was used as an SMG for brutes.
A Type-2 Energy Hammer, but called the "Gravity Hammer," because you could send things flying if you hit said thing with this. This was used by Brute Chiefains, not war Chieftains. It has a Vortex ability, meaning it could rip things apart and suck them in.
A Jiralhanae variant of the Type-25 Energy Rifle, also known as the "Plasma Rifle," it shoots red orbs of plasma, unlike its normal variant counter part.
Sangheili weapons:
A Type-1 Energy Sword, when it's activated, it is 4.32 ft. Long. These were used mostly by Sangheili, also called "Elites," during the war. These are really deadly, but run on a power source. I do have two of these...