Whats your: Ingame name Device used Device OS I'll be testing this today, but the devs might need your info to do further investigation if this is in fact the case.
You attack using "Surprise", which does lower damage than a normal attack. However right after the attack, before you spend any other action points, you can view the entire map of the enemy base. While it will not show you where the objectives are it will allow you to see how many agents they have in each building, their…
In my experience all base upgrades are permanent. I'll contact the dev team for you to make sure I'm not missing anything, and to pass this along as a suggestion.