This is how the new inventory system now looks:
There are 4 pouches that can hold small items, such as silencer, or grenades and two spare gun slots. For simplicity they can hold any type of gun. The soldier will be restricted to only being able to carry two guns. Changing weapon now costs only 1AP. Launching 40mm grenade costs 11AP, while throwing a normal grenade costs 12 AP, as before.