I don't have a problem with this game. I'm glad there are more towns than FO3, locations, quests etc, but damn did they over board with the amount of enemies. It seems like no matter what I have to fight 5 or 6 people at a time, I burn through stimpacks like no other. Not to mention that half of the enemies move so fast that you're quickly swarmed, the Cazadores, Radscorpions, Nightkins, Deathclaws...
One enemy I particularly loathe is the cazador. You always meet them in groups of 3 to 4, they fly quickly so you can't kite them at all, they do heavy damage with a poison and you find them everywhere it seems. It'd be nice if they toned them down a bit. Either reduce their numbers or make them do less damage/slow them down.
You may see this as a problem.
I see it as a welcome change.
The wasteland in Fallout 3 never handed your ass to you. The Mojave Wasteland, on the other hand, hands your ass to you quite frequently.
Feels a lot more like Fallout 1 and 2, which is a good thing.