When you do one of the sides to the war, do city guards that support one side or the other attack you after first joining. Irs been awhile since I did the main war quests and can't remember.

Nope.

No and I actually think they should if you are wearing the other factions armor. JMO

Thanks guys. Glad to hear this. I've been wanting to redo these quests but paused when I couldn't remember if city guards attacked me or not.