I've come across a couple things that have complicated the ability to complete the game.... I've completed almost all of the quests and only have a maybe half dozen quest lines to finish. However as I played I only completed one of the stormcloak quest line quests once in a while so they are spread out all over all my save points. I am currently on the quests that ask you to take over some of the towers(more importantly the last one prior to attacking Solitude. When I follow the quest arrow to the spot where I have to meet up with the team of NPC's that I need to take over the Haafingar area tower the npc's arent at the location specified. Same goes for the guards at the tower, but every now and then when I go back to a save point the npc's still arent there but the guards are and are able to kill them down to 0% but even then it doesnt allow me to complete the quest. I just get stuck at 0% remaining guards.
This same thing happened when I had to take over the Rift tower but after a while when going back to save points the guards showed up at the quest location mark and then was able to go in and take over the Rift tower for the completion. Once I tried to go back to a previous save point to both of these towers I went back to the Rift tower and the npc's didn't show up again.
I am playing on xbox 360 and am wondering if there is anything I can do to help the npc's actually show up or would I have to restore from a much earlier point in the game. I have no problem doing this but I'm so very close to game completion and would rather not have to start with a very early save point in the game.