I have divised my Halo 3 suggestions into 2 parts: Single Player and Multiplayer suggestions. The * means it should be in both single and multiplayer games.

SINGLE PLAYER

*Night Time Option on Sniper scope w/ night time mission

Command Marines

*Prone Possision

*Be able to keep dual wields without having to drop a weapon while meeling or throwing a grenade.

*Tank should go faster

Epic battles (much like Call of Duty 2)

The light does not go out automatically

Online Co-Op

*Single shot or three round burst with the battle rifle

Have the game finish with Master Chief and HOPEFULLY (i know it's a 1 to a billion chance) make the ending give off a vibe that another Halo will come out

Probably more to come...

MULTIPLAYER

BOTS!!!

You can check stats without going to bungie.net

32 player would be cool

Unlimited grenades

Fuel Rod Gun*

Mines

Unlimited Grenades Option

Changeable Weather (snow, rain, gray-cloudy, sunny etc.)

Customizable Maps (filling items in a pre-made enviroment)

All matchmaking lists also have unraked types

Game Recorder

While waiting to get into an Xbox Live you can view other games in session as well as in the Menu screen.

NO MORE MODDERS!!!!

(more to come)

BONUS!!! Read plz!

Back in the day when we were all playing Halo: Combat Evolved and the Halo 2 teaser was just announced (the one where Master Chief jumps out of the ship), we thought the first mission was where you flash onto one of the Covenant carriers and jack it and fly it down to earth. Well, that did not happen but wouldn't that be a cool mission. Just a thought. Practice Patience and Fight Fear.