Nothing captures the feeling of Halo more than getting into the chaos of combat putting great risk to yourself to save your fellow marines and continuously leading the charge as a vanguard with all that firepower at your back.
this is the polar opposite of marathon
Whenever I did co-op campaign with a friend in the original trilogy, the random marine (usually ODST) to join us in the passenger seat of the warthog is named “Billy”.
Our goal was to always give Billy a rocket launcher or another strong weapon and take him as far as possible through the level until the game literally forces you not to bring anyone with.