Here is the full list of all 34 SCHAR: Blue Shield Alliance achievements.
Complete All Kronor Missions
Kill 50 Enemies As A Pilot Without his Ship
Utilize An Ally Ship 5 Times
Complete A Pluto Missions
Hit Every Warp Gate During the Pluto Mission
Allies Have Destroyed 1000 Enemies
Complete All Mars Missions
Dump over 10000 Units of Salvage
Complete All Moon Missions
Deploy 4 Turrets at Once
Complete All Earth Missions
Destroy 10 Enemies At Once
Kill 10000 Basic Enemies
Kill 2500 Medium Enemies
Kill 1000 Heavy Enemies
Kill 2000 Kamikaze Enemies
Kill 20 Jetton Enemies and Gain the Pickup
Complete All Jupiter Missions
Complete All Vesuvius Missions
Complete All Mau Missions
Complete All Metroplex Missions
Complete All Missions
Complete All Missions in Co-Op
Complete Any 5 Survival Missions
Don't Let Valgard's Ship Die Through the Entire Campaign
Collect 65536 Units of Salvage
Buy Every Single Improvement for a Ship
Complete a Mission Without Firing a Shot
Revive a Co-Op Partner 9 Times
Defeat the Last Mission With a Ship That Has 0 Upgrades
Win 10 Missions With All Generators Filled
Give Weapon Bonuses to Allies 10 times
Heal Ships of 2500 Worth of Damage
Block 500 Bullets with your Shields