Always running out of ammo

I never had a problem with ammo. You can find plenty, even the rare ammos are abundant if you actually look for them. Even after killing a few players, you usually get more than you need. Aim your shots, don't just spray and pray. Also ask your teammates, sometimes they can ping you ammo that you need or may have some they can give you. This is a game about skill, you just gotta practice and get better. Otherwise there are more casual games out there. Frankly I'm tired of casual games, which is why I'm playing this over them.