Just a side note.
This achievement can glitch on you. Many people have posted across the web (including me), that upon scanning the last Propaganda, the achievement is not unlocking.
To our knowledge the only way to get the achievement is to replay the game again (new game). If you play it through on easy, it should take you about 3hrs if rushed to complete. Just make sure you grab all the Propaganda in one go.
We're not sure if the glitch happens if you miss some and then get them via chapter select or all in one playthrough. It's luck of the draw to my knowledge.