Adding info when working painfully with the whole thing.

During U.A era, each of them have shared territories in one simple galaxy

Out of 18% of territories shared by LGR, aurus, cyberas empire and asirus getting

The 28% belongs to DGE because of the sake of protecting territories of nexarans and other nexaran cousins. Which boosted manpower and research, however they can help with their work too.

And of course they came from specific role.

Core cyberas roles as assaults
Chipped cyberas as defenders
LGR as vehicle support
Asirus as special operations
DGE as infantries
Aurus as merchants and mercs community