Arguably the coolest looking armor in Fallout New Vegas is the NCR Ranger Combat Armor which is very rare in the beginning but it is possible to get if you try hard enough. The NCR Ranger Combat Armor has a DT of 20, value of 7500 and weighs 30 lbs without the helmet(3 DT no weight or value) . Being as it is so rare it is also hard to repair without the Jury Rigging perk in which you can just use any old NCR armor to fix the NCR Ranger Combat Armor. This is how I got it and it seems to be the quickest and easiest way.
As you travel the wastes you will most likely wander into Ranger Stations scattered across the Mojave. In all thee are 5 Alpha, Bravo, Charlie, Delta and Echo. The first appearance of an Veteran Ranger and the NCR Ranger Combat Armor was at Ranger Station Delta and you can get to it in a couple ways.
First you can get the quest from Tech Sergeant Rayes which will send you to each of the Ranger Stations. Ranger Station Delta is the closest and directly north a few steps. Once you get there you will see a few Rangers and one veteran Ranger. You will have to kill him or lure enough bad guys into the camp and hope he dies. I killed him myself easily enough but lost a lot of rep with the NCR, but luring enough enemies into the camp would take a very long time. If your sneak if good enough you can reverse pick pocket the Veteran Ranger and give him better armor then steal the NCR Ranger Combat Armor from him once he equips the other armor.
If you make the NCR mad enough at you by siding with Caesar or just killing them a lot, the NCR will send troops at you one of them being a Veteran Ranger. This isn’t a very easy fight if it happens early one but with the right weapons you should be able to kill them all and get your NCR Ranger Combat Armor.
The last way I can think of is to make a straight shot at Ranger Station Delta. From Goodsrpings look on your map and go all the way east to the river. Right before you get to the river is Ranger Station Delta. Now I can’t confirm that if you somehow make it there right out the gate that an Veteran Ranger will be there but your welcome to try for the NCR Ranger Combat Armor.
Alright I hope your all enjoying your stay in New Vegas and I wish you luck on getting your NCR Ranger Combat Armor and surviving the Mojave. Good luck and happy hunting.