Is Fallout 1/2 a difficult game once your character can wear 'power armor'? I read in related threads that apparently this armor makes one 'a walking tank'.
FO2:
Well, PA is pretty darn hard to get. You're not coming fresh out of the Temple of Trials and getting it in the next 20 minutes as is the case in FO3 - I ran into a dead Outcast crew right next to Megaton once.(unless of course you do a speed run). You're not required to be trained to wear PA... But it'svery hard to get one, and, a long way away.
Let's just say that as far as armor and weapons are concerned, you'll be praising the leather jacket, drooling over the rusty Metal armor... and dreaming of Combat Armor for a long long time. And the ordinary pistol and one-shot rifle would be a high valued thing for you.
I'd say that, unlike FO3, Enclave patrols in FO2 are often deadly even to high-level, power-armored players.
I second that. The ordinary 3-person enclave patrol is a major challenge. Their armor is the best in the game, and their weaponry is superb.
A 20 lvl char packing the YK, with Sulik (caseless SMG), Vic + Cassidy (Gauss rifles), Myron (Gauss pistol), wearing Enclave PA, and having the others have PAs/Combat Armor MK2 as the minimum would from time to time loose either himself or a follower in such an encounter.
Basically, the "OMG Enclave! And they've got THEIR power armor! We're doomed, doomed I tells ya" vibe of the BoS in FO3 is a very acurate description of the FO2 state of the Enclave.