So I'm not very far into the game yet...at the part when the demo guy is going to plant charges and you have to protect him.
Anyhow, there is a medic waiting back at the main doorway to the place, and I was figuring I could go back to him to heal up between planting charges. But when I get to him, he won't heal me. I thought the medics would load you up just by standing in front of them...
Also - all those little control panels with the things that look like hearts growing off of them...is there something you are supposed to do with those?