There was understandably more gore n fallout 3 than oblivion due to the use of guns and having only a few specific areas on the body to target.
A good portion of the gore in Fallout 3 was caused not because "it's a gun game" but because the Fallout series has always been full of over-the-top, black humor, absurdity. The gratuitous exploding bodies goes along with the exploding nuclear cars and the soda company that sold radioactive soda (that killed dozens in focus testing) with a smile.
As much as Skyrim has? Thank you.
:)