Hi there, I was paroozing around and stumbled across your thread. I work full time (Mon - Fri, and one weekend a month) with the
California Army National Guard's 40th Infantry Division.
As far as base noise is concerned, most of the time all of the airfield activity is from helicopters. Every once in a while we'll have large aircraft (C-130's, C-17's, 737's) come in and even once in a greater while, Navy pilots will fly their F-18 jets in and have lunch here.
As far as night is concerned, we halt all airfield operations at 20:00 HRS (8:00 pm for you civilian types

). Only emergencies are authorized to use the airfield after that time.
Hope this info helps, happy house hunting