I'm always annoyed in Oblivion, that while some dumb bandit can set up a clever tripwire/ falling Mace trap, and Daedra posses the obilities of making LANDMINES and AUTOMATIC FIREBALL SHOOTING TURRETS, you are stuck charging in and being blown to pieces,
I mean, is it really that hard?
Keep in mind that you can now cast runes On the ground, (oh JOY!!!)
So post your comments on how you think you could play defensively.

Well first I was think about this
Daedric Recon
http://tesnexus.com/downloads/file.php?id=7326
But then
Magical Turrets
http://tesnexus.com/downloads/file.php?id=21575
Well yes as part of tactical preparation thats looks really interesting and can be done at last with mods