1) In infection mode (if their is one) have the infected spawn as the flood or at least make it an option.
2) In forge add items such as switch controlled doors, breakable glass, more decor items such as radios, dead bodies,
3) Also in forge mode add the ability to change the time of day, the weather and create the green smoke that you see when your in a flood infected area.
4)In campaign add helmet cams, when you find a dead soldier you can watch his helmet cam, if you watch all of them you can get like 20gs or something. (not my idea took it from another thread)
5) Add new armors and armor colors including the color black.
6) Drop the bubble shields, regenerators, and deployable cover their stupid.
7)add a pelican (not gunna happen but just an idea)
8) Have the choice for like 3 stock maps, one flat grassy plain, one like foundry, and one desert location or something for forgeing.
9) Add sky grids to more maps
10) Bring back the lock on for rocket launchers but drop the missle pod
11) Implement covenant weapons more often they hardly get used in halo 3.
12) Add a transport warthog into multiplayer and forge
13) allow first person shooting from passenger of mongoose and warthog, also allow 1st person while on the warthog turret.
14) Allow elites to wear the armor that they wore in halo2 (it was orange and the helmet was really big) also let the energy spear that they used be a weapon.
15) Add semi automatic weapons other than the carbine and the sniper, kind of like cod 4's m14 but a halo edition of one
16) Add a more realistic bash animation, or have it rotate through them so you dont do the same lame move every time.
17) Add more destruction, if the bomb blows up in assault have it blow the base up.
18) Add a survival game mode where players are pitted up against constant waves of marines, flood, or covies
19) Add armor destruction, in battle if you have been alive for a while and you have been shot up have your armor start to have static going through it like a damaged banshee. Also have the paint chip and blood splatters reamain.
20) Add more realistic grass and grounds, every ground in halo 3 has no tall grass its all just perfectly mowed.
Note. For those of you who say no to a pelican I can understand why yould would not approve of it so it would either be tweaked a ton (like 5 person capacity or no missles or something) or it wouldent even exist out of campaigns and custom games.
Oh and to the kid who said it would ruin infection it wouldent the way we play it (just put in some simple rules and kick the kids that dont follow them), one kid (generally me haha) is designated as the rescue pilot using the hornet, I pick people up when things are getting to dangerous and I relocate them to a safer spot, I also provide air reconnaissance spotting (not shooting) the infected. I play with friends so no one is cheap and no one just sits on the pelican the entire match. Oh and last man cant drive vehicles anyways.
[Edited on 09.28.2009 3:43 PM PDT]