It seem some here don't understand what's the point from those 3 chapters about Captain America. It is a TEST and also it's kind of an ENTRY from SCP Foundation. It's normal for SCP universe to have this plots and settings. Layers of mystery and a twist in the end.
I don't like how he keeps on going to the frontline and interacting with people. Its making him lose the sense of mystery. He's no longer the elusive 05-1. Now he's just another guy with a lot of power.