Wow it turns out way better than I thought Lore: Elite A-002 & Elite A-001 are sibling, with Elite A-002 being younger brother, they both joined the army of Endoreus and getting higher and higher rank until Elite A-001 get to be Elite Force first, eight years later, Elite A-002 finally become Elite Force, they fight with eachother side by side on every battles, but because Elite A-002 become Elite Force after Elite A-001, he gets better armor, having more protection, mobility, and durability, one day, when they're fighting, they encounters the Timakdo's Elite Mech, despite having worse tools and armors, Elite A-001 charge up and block most of the attacks from his brother, giving Elite A-002 chance to attack, this results in Elite A-001's serious injuries, he barely survives, and leave the army to recover for 2 years, in those 2 years, Elite A-002 never leave him, every time he get back from battle the first place he would go is to Elite A-001