there could also be a map where you can meet other players, you can shoot but are unable to kill any1 so you can explore the map. And if it's possible, could there be some sort of field where you can test a weapons mobility?
I suggest that a firing range is added where you can test weapons that you don't have or the weapons you have so a person can experience the fire rate and/or get used to the iron sight and practice aiming with guns from unlocked sets. This could help players determine what gun to buy.