myBackpack = unitBackpack player, returns the units backpack. Hence you can add stuff to the backpack like this: (unitBackpack player) addMagazineCargo ["the mag!",1];

But! Both Uniforms and Vests are containers, but there is no command to return the units backpack.

vest player;
uniform player;
Both return the classname, not the actual object.

Two new commands would be great!
unitVest and unitUniform, so that we can control where gear is put on the soldier. Currently the uniform is filled first, then the vest, and last the backpack.