I have a question about quest continuity
#spoileralert
If I lose Peril in Pelargir quest, and the message gets into "wrong hands", do I have to fight Lord Alcaron at all in Morgul Vale? Did his scheme in that case not go south?
How about loosing Mugash in the forest? Or not rallying the clans around Saruman in the VoI cycle? Would losing those quests mean I do not have to put Uruk and Wildmen enemies in the Helms deep quest respectively?
I really want to help Saruman but, I lose the cycle, so did I actually help Frodo?
Not to mention multiple killings of the balrog.
Or to get more depressing. By losing the first quest in the Balck Riders saga, does Sauron take command over Middle Earth and spoil the shire? Each time?