Here is the full list of all 30 Ironcast achievements.
Complete 100 missions across all campaigns
Win a Survival mission without attacking any enemy
Your Ironcast has been destroyed by overheating damage
Win a Battle mission without using any defences
Destroy 100 enemies across all campaigns
Upgrade an Ironcast to over 1,250 HP in a single campaign
Win a Battle with less than 5% health left
Reach Global Unlock level 20
Defeat the final threat facing Britain
Deal 100,000 damage across all campaigns
Spend 50,000 scrap across all campaigns
Equip a MKIII or higher system on all four slots in a single campaign
Equip a systems augmentation in all available slots in a single campaign
Gain 10,000 War Assets across all campaigns
Match 20 or more nodes in a single chain
Keep both Shields and Drives active for 5 turns
Equip a rare system
Fire your weapons 6 times in one turn
Reach Global Unlock level 10
Defeat Commandant René Durant
Equip a passive augmentation in all available slots in a single campaign
Create a match chain with 4 different types of node
Complete a Battle mission without taking any damage
Equip an Ironcast ability in all available slots in a single campaign
Match 2 Overdrive nodes at the same time
Kill an enemy with a weapon fired on Overdrive
Reach Global Unlock level 30
Reach Global Unlock level 40
Match 2,000 nodes in a single campaign
Kill 3 Enemies in one mission