A term for two parties whom were once together but now are not. (NOT political)?

Like, i play an online game with various player made guilds, Runes of Magic, and I was looking at the Siege War results in the past, Siege War being a Guild versus Guild Player versus Player game mode within the MMORPG, or Massively Multiplayer Online Role Playing Game, and while looking through past results I saw a result of my old guild, which I am no longer in, that I believe was after my time and I thought of saying "We beat this guild." but with us not being together it feels awkward to say "we" since it was them, would there be a term for this?