This is a guide on how to capture units and recommended farming spots in G Generation Eternal. It covers the merits of capturing in G Generation Eternal, whether it can be done via skip, and more. Please use this guide to learn how to capture units.
How to Capture
Obtain by Chance When Defeating Units

When you defeat an enemy unit, there's a certain probability that a capture will occur, allowing you to obtain the target unit. No special operations are required, so just defeat the enemy units targeted for capture.
Units Cannot Be Obtained by Giving Up
Units obtained through capture can be obtained by clearing the stage. Be careful, as you won't get them if you give up.
Check Capturable Units Before Challenging

When selecting a stage, tap the magnifying glass icon to display the units targeted for capture. If there's a specific unit you want, it's recommended to check this screen beforehand.
Can Also Be Checked from Development or Gallery Unit Details

You can also find stages for capturable units by reverse-searching from the 'Acquisition Route' in the Gallery's unit encyclopedia or the Development screen.
Capturing is Possible Even with Skip

Captures also occur during Battle Skip (auto-farming). Since you can automatically collect desired units, make active use of it.
Merits of Capturing
Effective for Shortcut in Development Route

It's possible to advance development using captured units as a base. Since you can skip development, try to capture them if possible.
Obtain Capital/Medals by Dismantling

Unneeded captured units can be dismantled and converted into Capital or Rare Medals. It's also recommended to sell them for funds once their development has progressed.
Recommended Farming Spots for Capturing
Stages Where Development Units Can Be Captured

Let's farm stages where you can capture units needed for development. It's recommended to choose farming stages by tracing the acquisition route from the development menu.
Hard Mode Increases Efficiency

In Hard mode, the number of capturable targets increases, and the efficiency for experience points and materials is also excellent. If you can secure stamina for farming, Hard mode is recommended.