Well done, your first pew pew keep up the grind it all pays off at tier 4 with the hunting rifle and trench shotgun (rubs hands at the memory of the pump shotgun in caves) every chance you get make sht loads of gunpowder even if you dont need it right then. It is time to really start mining for real and save as much high quality ore for tier 4, you gonna need it especially copper and gold. Again, well done so far.