Not sure if this topic belongs here but anyway. I've seen pics of drop weapon-feature in Resistance and it's used through action menu. This would be very nice and long awaited add to the game. But when you have lots of different items with you, dropping them through action menu can be a bit hard and slow. I've made a nice solution to this in my head, here it goes:
Press your map key (M) to show map and notebook. In notebook you'll see the GEAR section where you can choose your weapons before missions if possible or just read some historial about the weapons. You could also drop weapons from the gear section, just by right clicking weapon/item you want drop. This would make it much easier and faster. Action menu option could also be there and both these features could be used if wanted by enabling/disabling them from the options menu.