From what I recall, you only regen the first bar.
Trying to set up a nice mission in ArmA 2 again, without going overboard and having it turn into a raging battle. Right now, spending oodles of time just placing sandbags in a village to make it look fortified. Will have to investigate how to make the buildings wrecked as well.
A lot of effort for naught really, as it'll just be for me to play, heh.