How often will an 88M be deployed, and to where are they usually deployed?

Any where motor vehicles are driven, you can be deployed with any unit that has trucks, ie CAVALRY / ADA or a corps support battalion.

Where there are vehicles, there are transportation units. Where there are transportation units, there are 88Ms. They are everywhere. They get deployed to where ever the mission is needed/designated.

Look at a map of the world and think of a conflict that might erupt where Army might be called to or where there might be a humanitarian or peacekeeping force sent. Those are all areas where an 88M can and will deploy to. I have yet to run across a unit that did not have 88M's in it although I am sure there are some. Army has to get the gear in the rear and the support to the front line... that is done by trucks. Water, oil, gas, munitions, food, mail, repair... all trucked in by 88M.