Some tidbits I am thinking of Gungnir's past which may or may not mention in next post.

Codenames of his fellow comrades.

1-Dainslef, the cursed Sword (Sweden) - The leader of the lot, and the one with the highest military awards. A scientist and a soldier, Dainslef is currently Missing after being dismissed. Rumour says his neverending hatred towards the Epics and the New World has led him into forbidden researches.
2-Excalibur, the Sword of Kings (UK) - A Welshwoman, specialist in armored vehicles and Navy. Currently helping to reestablish order in the United Kingdom, and also a bethroded of the Royal Family. She and Gungnir can't stand eachother.
3-Gungnir, spear of Odin (UK) - Marksman specialist.
4-Ruyi Bang, the Compliant Staff (China)- A female specialist in infiltration and shadow operations. KIA.
5-Vajra, the Thunderbolt(India) - A male astronaut and pilot, specialist in airfighting and transport operations. Currently active, but on unknown location.
6-Kusanagi, the Grass Cutter (Japan) - A demolitions and artillary specialist, she had been fitted with cybernetic implants in 70% of her body. Currently on palliative care as the implants malfunctioning have caused irreversible multi organic damage.  

...Feel free to shoot it down or even suggest more people. (The rules are simple, Human, ridiculously skilled in one field, and named after a legendary weapon).