Here is the full list of all 25 Iron Harvest achievements.
Destroy 1000 enemy mechs.
Destroy 50 enemy bunkers in total.
Acquire 100000 Oil in total.
Win a match by earning enough Victory Points.
Win a match with a Victory Point outcome of 500:0.
Win a match without ever retreating or reinforcing.
Win a match by destroying all enemy HQs.
Construct 100 structures.
Revive a hero 3 times in the same mission.
Play your first match in multiplayer.
Acquire 100000 Iron in total.
Build a Tur, Gulyay-Gorod, or Kaiser.
Revive a hero.
Attain elite rank with one of your units.
Defeat 100 units with a Flamethrower squad.
Harvest 500 wrecks.
Pick up 1000 pieces of equipment.
Reinforce 5000 soldiers in total.
Retreat with 1000 units in total.
Build 1000 mechs.
Play 500 Matches or Missions in total.
Conquer 1000 resource points.
Kill 100 enemy heroes.
Collect 1000 resource stockpiles.
Win 100 Skirmish Matches.