Here is my first little mod for OXCE 7.12, a cargo bag. As name suggests, it adds a bag that allows you to carry heavy equipment around. Each bags deduces 8 units of weight from a soldier's load but takes up 4 spaces in inventory, 2 spaces wide and 2 spaces high (just like a mind probe). So if you using a classic UFO Defense/Terror from the Deep inventory, you are limited to a maximum of 3 bags (More with mods like Invent Max by Komandos). You can use this item on weaker soldiers that can barely carry a rifle and a spare mag, so with that bag in a backpack they can also have a grenade or two on their belt. Or something like that. To obtain the bags you should pay 2500$, which is probably unrealistically overpriced, but may be not so if you shill Heavy Plasmas, Laser Pistols and dead aliens left and right.
Sprites used as a base was medical bag from X-Com Files, so credit goes to Solarius Scorch, I guess.