Bases (carrying over from proggys comment)
Underground areas that would contain the SOC bunks and a war room. Overground would contain Base Faction bunks, DB, Jail and everything else
Construction (in your second image)
Should be reduced to a maximum of 3 floors, will be useful to those who can use it well but won't just be an 'easy sniping spot'
Random Areas on the Map
Comms - I know it's a frequent feature on maps but its useful for tryouts and Breach and Clear certification
Wood Cabin - You mentioned on TS the addition of dense trees, and I feel there should be little clearings with things in them, such as wooden cabins like here.