Here is the checklist for the things that are added into the game. As we add them, we will cross the object off the list. There are some objects that aren't on here, because they're more scenary objects rather then game objects.
Vehicals;
Warthog (Standard)
Warthog (Rocket)
Warthog (Guass)
Warthog (Open-Back)
Hornet
Elephant
Scorpion
Mongoose
Wraith
Ghost
Spectre
Prowler
Chopper
Banshee
Scarab
Enemy Types;
Marines (Just need different weapons now)
Covenant (Just need Sword Elite)
Brutes
Drones
Flood
Hunters
Sentinals
Weapons;
Magnum
SMG
Battle Rifle
Assult Rifle
Sniper Rifle
Shotgun
Rocket Launcher < Needs proper sound
Spartan Laser < Needs proper sound
Machine Gun turret (Can be placed or ripped off of a tri-pod)
Missle Pod Launcher (Can be placed or ripped off of a tri-pod)
Flame thrower
Plasma Pistol
Plasma Rifle
Needler
Energy Sword
Beam Rifle
Carbine
Brute shot
Spiker
Mauler
Gravity Hammer
Sentinal beam
Plasma Turret
Equipment;
Frag grenade
Plasma grenade
Firebomb grenade
Spike grenade
Med kit
Active camo
Overshields
Bubble Sheild
Trip mine
Grav-Lift
Regenerator
Power Drainer
Deployable Cover
Radar Jammer
Flare
Other;
Water
Waterfall
Fish
Explosive Canisters
Trees
Covenant Structures
Modes;
Online mode
Campaign mode
CTF