Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Compulsive Searcher	Find All Objectives of all maps.
Deep Web Searcher	Complete 25 online maps.
Fifteen Fully Found	Find All Objectives of 15 maps.
Found you!	Find an objective.
I will find them!	Find 100 Objectives.
It's good to find the King.	Find All Medieval Objectives.
It's high noon	Find All Western Objectives.
It's right there!	Find 10 objectives.
Map Scanner	Find All Objectives of 5 maps.
Online Search Engine	Complete 50 online maps.
Online Tracking	Complete 5 online maps.
Part of the community.	Complete an online map.
Sweeped	Find all objectives of a map.
Ten Times Tracker	Find All Objectives of 10 maps.
Those are rookie numbers!	Find 25 objectives.
Track like an Egyptian.	Find All Egyptian Objectives.
Under the Firewall	Complete 10 online maps.
We've struck rock!	Find All Cavemen Objectives.
You think your objectives are safe?	Find 50 objectives.