In the next version the inventory system will be expanded. I am trying to keep it simple as possible. This will allow for more grenades to be carried and also make it slightly more realistic
The new system, there are the following slots:
1 hand slot for current weapon
1 holster slot. Can only hold hand guns
1 armour slot, as before
1 long weapon slot (on shoulder sling), can only hold long weapons (rifles, machine guns, submachine guns)
4 -6 pouches, which can store small items, such as grenades, silencers, etc.