HALOPRO2015 was a member of the L0ST Clan (early version of AWN).
HALOPRO2015 played a character named Master Chief. He was a minor character who mainly appeared in the original Investigations.
After off camera wars between L0ST and ECH0, Armored Werewolf and Armored Wolf decided the only thing to do was eliminate Halo from the group due to him holding the group back and crippling them. He made one last small appearance on an old version of the Half Human, Half Rat episode of Investigations. After that, he was never mentioned or talked about on any future videos.