I guess since we're posting Halo: CE and how awesome it was here's a very old montage that speaks to a few of the skill moves you could do as well as just how deadly one person can be in CE
https://www.youtube.com/watch?v=GNTnIwLtHF4
This is a major reason why Halo CE is far and away the best Halo for skill based play and execution. One player can make some serious plays and out shoot/play people like no other Halo. That's what the series needs to get back to, the potential for high lethality via a high skill gap and balanced sandbox.