Well I'm pretty sure this can be summarised as Too Many Codenames On The Dancefloor.

red vs blue (fandom)
1. Four-Seven-Niner
2. Connecticut
3. Washington
4. North Dakota
5. Maine
6. South Dakota
7. Carolina
8. York

according to plan (original)
1. Nile
2. Sunstroke
3. Tokay
4. Vitis
5. Omen
6. Beaufort
7. Timbal
8. Jester

red vs blue au: the collective (fandom)
1. Delta
2. Tex
3. Omega
4. York
5. Theta
6. Washington
7. Epsilon
8. North

because why the hell not (crossover)
1. GLaDOS (Portal)
2. EDI (Mass Effect)
3. R2D2 (Star Wars)
4. JARVIS (Iron Man)
5. Wintermute (Neuromancer)
6. WALL-E (WALL-E)
7. Pino (Ergo Proxy)
8. Epsilon (Red Vs Blue)