Gage (called Trak in the European release) is a CO for the Lazurian Army specializing in artillery combat and an antagonist turned anti-hero in Advance Wars: Days of Ruin.
Gage is first seen telling Tasha to retreat while her forces are engaging the 12th Battalion, informing that it is a direct order from Forsythe. Though reluctant to stop fighting, Tasha orders her men to fall back.
Gage later fought against the 12th Battalion himself, with his "follow orders without question" attitude clashing against the optimist beliefs of the Rubinelle CO Will.
After the Lazurian forces were defeated by the New Rubinelle Army and Brenner's Wolves, Gage was captured along with the other Lazurian COs and soldiers. However, the Lazurian prisoners were set free by the 12th Battalion, who turned against the NRA after witnessing them unlawfully execute Forsythe.
After Brenner sacrificed himself to give the Lazurian and 12th Battalion forces time to escape, Tasha and Gage along with their men teamed up with the 12th Battalion to oppose the New Rubinelle Army.
Following the defeats of Admiral Greyfield and Caulder, Gage became a member of the new society founded by Will. He is seen making fun by Tasha for having a hard time milking cows. Lin then shows up and asks if he has gotten enough milk for the next day. Gage replies that he is working on it before commenting that he thinks the cow hates him.