You may have seen the health crate placeholders in mat^2's screenshots:
or the ammo crates:
Are there any suggestions or comments about the ammo crate? I just used the NATO Symbol of Interchangeability for the time being. The context is the symbol represents the packaged ammunition can be exchanged on the battlefield.
Now, I understand that the red cross is pretty much universally recognized, but on the other hand the ammunition symbol I am using for the crate might not represent the contents inside that well. People have suggested the shape of a bullet, like this:
TL;DR - What symbol do you suggest for the ammo crate? Keep in mind we are limited to detail due to voxel size.