I got this idea from reading another topic about "pre-modern crude explosives". I really like stealth characters in movies like some kind of ninja or so but in Oblivion I could never realize this style of fighting. Yeah you could sneak to one person and hit him from behind with a bonus damage but if he got companions they spot you and attack you forcing you to fight eye to eye which is not what I wanted.
I'm not playing an assassin to fight like a normal warrior. So If you can't attack from the dark hide again and attack again and so on - sounds dull to me but I hope you understand - here's another solution:
Wouldn't it be cool if there is a skill like engineering which allows you to build traps and bombs (not like a modern bomb, more like greek fire or so, just watch src="http://www.gamesas.com/index.php?/topic/1172685-pre-modern-crude-explosives/"]this topic[/url]). The mages got runes so why shouldn't there exist a non magic version of it to.
As a stealthy character you could observe the group of enemies - maybe a group of bandits - your up to and install the traps and plant the bombs. After your preparations you sneak to the leader of the group and hit him with a deadly strike and withdraw from the light of the campfire unleashing chaos and fear under your unsuspecting foes. The bandits will run around disoriented and activate your traps and they will burn to their ashes. Maybe a few demoralized bandits will survive but their attention is drawn to the fire and their dead comrades so you can kill them easily.
That's how it should happen if everything runs as expected. Sure you can fail depending on your skill and draw attention on you, than run for you life:D. If your skill raises your traps will be more efficiently and you get more variants.
It also works for archers as they can take position behind the traps lurking the enemies into the fire or whatever. I just want something that holds your foes on distance making a fight unique for a stealth character and not just get the first hit and then fighting like a normal warrior.
This is my opinion so now tell me yours and be a bit patient if got carried away by my idea.
EDIT:
I added a new poll because to many people focused on the bombs and not on the main idea of traps for stealth characters.
EDIT:
What about other ideas to improve stealth characters so playing as a thief/assassin would be more fun?