Missing Achievements - In Guide But Not In Game?

Games Halo Wars Series
1

So, I have the official strategy guide, and in the Achievements section, there are a few 'chieves that appear:

Some Light Reading: Collect a Phoenix log
Just the Facts: Collect half of the Phoenix logs
The Full Story: Collect all Phoenix logs
Heroes Never Die: Play three matches as John Forge
Man-to-Freak Communication: Kill 50 units with Forge’s Warthog
Bear Necessities: Build 10 Grizzlies

…which don’t appear anywhere else I’ve seen (TrueAchievements, the list of Achievements on my profile on xbox.com… and I’ve collected plenty of logs by now). What gives?

2

The guides are often written months before the game’s come out with the review copies. A lot can change in that time these days. That’s why they offer digital guides that are regularly updated along with the physical guides.