Board Thread:General Discussion/@comment-25745922-20150813133828/@comment-1824272-20150813181537

Wherever you heard that Mobius 1 has a brother is fan fiction.

The "red ribbon" at the end of Ace Combat Infinity's campaign is an emblem from Aces At War: A History, which is a red version of the Mobius Squadron's blue emblem and the writing "MOBIUS - 118" is replaced by "INFINITE - 111". However, we don't know anything about its inclusion in Infinity or its relation to the characters yet, we only have speculation. But the brother to Mobius 1 thing is fan fiction.