Hm. This sounds like a really good idea, actually. Back when I played Counter-Strike Source, it was tons of fun, and I think it could work in Halo.
I’m not sure (and don’t really care, quite frankly) how it was in the video for CoD, but it should be as much like the CSS one as possible, i.e., starting off with a plasma pistol (maybe with double damage) for the first level, and working your way up through weapons, until you get to a single frag grenade for the second-to-last level, and then melees-only on the final one.
And maybe they could make it so your secondary weapon is always your bare fists, and that you can only melee if you switch to them, and if you get melee’d, you lose a level. Also, on the frag level, they should make it so that you have to switch between your frag grenade and your fists, otherwise a melee/grenade toss would make it super easy for you to finish it off. Also, you get another frag grenade if you melee somebody, unless you already had one.
And my personal favorite version of the Gun Game was off of the server Up In Smoke, where you could only use your knife (or, in this case, it would be your fists) after you got a kill with whatever gun you started that round with.
Trust me, it was really fun.
Or they could do turbo, and have the entire game be in a single round.
Or they could have both, as separate voting options.
Really, I just want to see it in a Halo game now. Thanks for getting me going, even though it’s probably never going to happen.
(Maybe they’ll add surfing one day? Nah, probably not.)