I smurfing hope it's not like Fallout 3's levelling system.

You're running about, merrily fighting raiders who are armed with tire irons and pool cues, laughing at their ineptness as you pump the silly banzai charging bastards with lead. After an hour of gruelling combat with super mutants in the DC ruins, you return to the Wasteland and spy more Raiders, having a jolly old time hanging out in some ruined house in the middle of nowhere, as Raiders are wont to do. "Ah ha, this sounds like a lark!" you think, looking forward to smashing some bat-wielding ponces after having fought off heavily-armed and incredibly tough super mutants for so long. Flash forward thirty or so seconds. There are bits of Charon spread within a three mile radius. You are cowering behind a dumpster with a broken leg, begging for it to stop while missiles come crashing down all around you.

in summary, when I play Skyrim I do not want to go in to grab an easy kill on a couple of mud crabs, only to find they've got missile launchers or death rays.