Complete Campaign Mission 01
Complete Campaign Missions 02-04
Complete Campaign Missions 05-07
Complete Campaign Missions 08-10
Complete Campaign Missions 11-13
Complete Campaign Missions 14-16
Complete Campaign Missions 17-19
Complete Campaign Missions 20-22
Complete Campaign Missions 23-25
Complete Campaign Missions 26-27
Complete Armed Recon Missions 01-03
Complete Armed Recon Missions 04-06
Complete Armed Recon Missions 07-09
Complete Armed Recon Missions 10-12
Complete Armed Recon Missions 13-15
Complete Eagle's Nest Missions 01-05
Complete Eagle's Nest Missions 06-10
Complete Eagle's Nest Missions 11-15
Complete Eagle's Nest Missions 16-20
The conditions for obtaining this achievement are unknown