Which ones have you found and how do you fight them? I'd say the wasps with the orange wings are my most dreaded monster of the wastelands so far, and I thought the Giant Radscorpion was tough. Thankfully, I stumbled onto a Gauss-type rifle in the wastes which evens the odds, quickly.
Great to see such high powered monsters so early into the game instead of leveling up to them. Just wish there were more raiders or more Faction attacks. I miss all the Raiders from Fallout 3.