can anyone offer any tips?
Tag your primary weapon skill and spend your first 2 levelups to raise it to ~70 and then work towards repair skill until 72 (the remaining 28 points can be gained through other means). Go do the Grayditch quest first - fire ants are very easy to kill and you'll find a chinese assault rifle with some ammo in the process. Collect all conductors, fission batteries etc. and trade them to outcasts for more ammo. If you specialize in small guns pretty much any assault rifle is a BFG but there are some truly awesome guns (my favourite is XL703E which uses very light ammo that is very easy to get from outcasts) in a National Guard Depot that you should raid ASAP which is when you have good weapon and repair skills and 300-400 bullets to your assault rifle. For me that happens around level 5. After that the Wasteland becomes Disneyland.