Here is the full list of all 44 America's Army: True Soldiers achievements worth 1,000 gamerscore.
Complete all eight "Wargame" missions without any casualties.
Complete any six "Wargame" missions without any casualties.
Complete any four "Wargame" missions without any casualties.
Complete any two "Wargame" missions without any casualties.
Complete Sniper Role "Wargame" missions.
Complete Auto-Rifleman Role "Wargame" missions.
Complete all Grenadier Role "Wargame" missions.
Complete all Rifleman Role "Wargame" missions.
Reach Professional level in any two skills.
Reach Professional level in any one skill.
Reach Skilled level in all skills.
Reach Skilled level in any three skills.
Reach Skilled level in any one skill.
Win 250 missions (4+ players in game) acting in any Role.
Win 150 missions (4+ players in game) acting in any Role.
Win 75 missions (4+ players in game) acting in any Role.
Win 25 missions (4+ players in game) acting in any Role.
Win 10 missions (4+ players in game) acting in any Role.
Win all missions (4+ players in game) of the Co-op Multiplayer campaign.
Destroy 50 Helicopters in multiplayer (4+ players in game).
Destroy 50 Ground Vehicles in multiplayer (4+ players in game).
Distinguished Leadership Award; 100 KIA's by Artillery Strikes in multiplayer (4+ players in game).
Successfully perform First Aid upon teammates 250 times (4+ players in game).
Successfully perform First Aid upon teammates 100 times (4+ players in game).
Successfully perform First Aid upon teammates 50 times (4+ players in game).
Successfully perform First Aid upon teammates 25 times (4+ players in game).
Successfully perform First Aid upon teammates 10 times (4+ players in game).
Win 25 missions (4+ players in game) as Auto-Rifleman.
Win 25 missions (4+ players in game) as Grenadier.
Win 25 missions (4+ players in game) as Team Leader.
Win 25 missions (4+ players in game) as Rifleman.
Win 25 missions (4+ players in game) as Sniper.
Win 10 missions (4+ players in game) as Auto-Rifleman.
Win 10 missions (4+ players in game) as Grenadier.
Win 10 missions (4+ players in game) as Team Leader.
Win 10 missions (4+ players in game) as Rifleman.
Win 10 missions (4+ players in game) as Sniper.
Win 25 missions (4 plus players in game) in which you were wounded at least once, but not killed.
Join a Unit (Clan) and win 10 missions (4+ players in game) as a Unit member.
Win 10 missions (4+ players in game) with an M9 accuracy of 80% or higher (15+ shots fired).
Win 10 missions (4+ players in game) with an M16A4/M4A1 accuracy of 80% or higher (30+ shots fired).
Win 10 missions (4+ players in game) where 30+ targets were suppressed with the M249.
Neutralize 75 targets with M203 grenade launcher in multiplayer (4+ players in game).
Win 10 missions (4+ players in game) with an M24/M107 accuracy of 80% or higher (10+ shots fired).