If you guys didn't know you can have up to 5 grenade shots and 4 rocket shots. The thing is if you have more than 3 shots, the number will wrongly display as if you're holding your primary weapon. This issue has persisted since alpha but since no one has cited it I gonna put it here.
In here I had 5 grenade shot, but the number showed +7 as for my primary ammo.
Wrong ammo count for grenade launcher and RPG