Well, the only thing that I don't seem to have traced down yet is the occasional bandit archer that goes through the animation of drawing, knocking, and firing arrows... but nothing is actually drawn, knocked, or fired.
That one's not a conflict but a vanilla bug.
Way back when beta testing the original Unofficial Patch we had a few reports of the same occurrence but it was quite random and totally unrepeatable.
You'll find if you leave the area and return after respawn the snipers if there will act as they should.
It was never satisfactorily tracked down so went un-repaired. Quarn used to call it "the one that got away".
Your load order and mod listing look fine to me.
The Oblivion engine being what it is you'll possibly never find that perfect mix of a 100% trouble and crash free game. If you can play for a 3 hour spell without a CDT your doing great. That's around the time span the engine can take before it needs a break to recover memory etc. Save, exit make some coffee and come back and you'll be good to go for another few hours.
Try to narrow down conflicts and test your additions as and when you add them is the best advice that I can offer. Also keep in mind that the more you add to your game the more inclined you'll be of running into problems and conflicts.
I'll say it again although it sounds like I'm preaching. It's far better to run a stable game with 100 mods than one with 200 that chokes every few minutes.
50 steps to a crash free game? I've been playing and modding the game since day one and all I can say is if you've an adequate rig - naw, you don't need 'em.
Now stop worrying and go enjoy the game. :wink_smile: Properly modded it can be a helluva ride.