Totally Accurate Battle Simulator

Once you have all the units unlocked go to the workshop. In battles search "Achievement 1 win a battle with each unit" by GeniusLi. Click the "install and subscribe" button. Then go to custom content on the main menu and play that level. Every unit from all the factions that have achievements will automatically be placed with one enemy unit. In one second it will die and all the achievements relating to placing faction units down will unlock.

This will be useful, what I've done is I uploaded a custom campaign that will individually unlock the achievements below instead of having them unlock all at once like in the custom campaign that Landfall re-uploaded. This campaign uses the override unit limit setting on the final battle.

Name of custom campaign: Poor Healer

Achievements you'll earn throughout the campaign:














Note: The western battle has been fixed to not take as much time, as you can't earn the Tactician achievement in custom campaigns based on my testing done with custom campaigns. Please be aware that this is my first ever achievement guide on this site and as such any feedback is more than welcome.