Here is the full list of all 11 HOMEFRONT Demo achievements.
Complete chapter 2 in the Single Player Campaign
Complete chapter 3 in the Single Player Campaign
Complete chapter 5 in the Single Player Campaign
Complete chapter 6 in the Single Player Campaign
Complete chapter 2 on the Hardest Difficulty in the Single Player Campaign
Complete chapter 4 on the Hardest Difficulty in the Single Player Campaign
Complete chapter 6 on the Hardest Difficulty in the Single Player Campaign
Find 30 of 61 News Pickups in the Single Player Campaign
Find all 61 News Pickups in the Single Player Campaign
Kill 5 enemies while they are on fire in Chapter 3: Fire Sale
Find the first of 61 news pickups