The ability to NOT use a cheesy square box for crafting guns and ammo.
This idea is as simple as simple gets: Two new parameters added to a weapon box config, the first being "model" and the next being "modelTexture." This way it's optional and doesn't screw up older packs.
When filling these in, you simply remove the old info (top texture, bottom texture, etc.) and fill in the model and texture info like you would with guns, planes, or cars.
This would allow us to have elaborate weapon boxes that resemble workbenches, tables, etc., rather than simple boxes. Not a huge priority or anything but I think it would be really, really cool if we had this option.