Weapons:
-BR55 (non heavy barrel version) and M90 shotgun replace the default Reach DMR and M45 shotgun on Marine maps
-Covenant Carbine added.
-New sound and visual FX for plasma grenades exploding. Being too close and looking at the explosion will be very bright.
-Adjusted weapon sounds for some UNSC weapons.
-Less screenshake for certain explosions like the dropship gun.
-Sniper rifle is now in 1st person


Characters:
-New heavy Spartan II added on Unearthed. Can carry a variety of heavy weapons (Warthog chaingun, falcon grenade launcher, or standard HMG)

AI:
-Elites rebalanced; very aggressive and dangerous in close quarters while still remaining careful and using cover at mid-to-long ranges. Shotguns can be useful in CQB against Elites. Or multiple people firing on one Elite will kill it quickly.
-Firing patterns for AI redone. Added more character specific firing patterns i.e grunts, Jackals, and Elites fire certain weapons in their own unique ways.
-Enemy and ally health adjusted a bit.

Maps:
-Added randomly called in UNSC air support on Unearthed.
-Dressed up some of the maps with more scenery/props.

New weapon:
-MA5C (replaces MA37/default assaultrifle on Marine themed maps)

New characters:
-New ODST models
-New Spartan III in SPI armor (No shields)

AI improvements:
-Covenant AI improved. Most enemy types can now juke and evade. Jackals can run. Elite AI improved significantly (They run more while still also crouching and taking cover. They also berserk and melee more.)
-AI firing patterns/accuracy redone.
-Waves in Firefight have difficulty progression. First round has lower tier enemies with less heavy weapons and increases enemy tiers and weapon availability as rounds and sets progress. This only works on Heroic and Legendary difficulties.
-Marines can now retreat/flee when in danger.
-Spartan AI overhauled. Spartans now properly take cover when their shields are getting low or if they're in danger. Spartans also have their own unique firing patterns/accuracy settings. Very noticeable changes.

Player & weapons:
-Increased health
-Grenade throw velocity tweaked
-Weapon sandbox overhauled for most weapons.
-Updated crosshairs for guns.
-MA2B can pierce enemy helmets.
-Plasma pistol's overcharge projectile can blind the player temporarily if it impacts nearby acting like a Covenant flashbang.
-Needler projectiles do less damage when they first impact but now there is actual damage for when the projectile explodes which does a lot of damage.

Models/Visuals:
-New customised upscaled textures for Jackals, Skirmishers, and Hunters.

Maps:
-Removed Lone Wolf for now as I broke it and it still needs to be redone.
-Minor tweaks to cover, scenery, and AI pathfinding adjustments for some maps.


Probably a bunch of other stuff I forgot.

NEW WEAPONS:
-1 shot disposable RPG with antitank HEAT round (Deadly against enemy armour - comparable to a grenade when used against infantry with splash damage)
-M392 Kurz (DMR with short barrel, laser sight, 30 round magazine, full auto)
-M90 CAWS shotgun with suppressor, red dot. Loaded with armour piercing slugs


Weapons:
-Crosshairs redone for some weapons
-New sounds for some weapons
-Semi auto grenade launcher increased to 7 rounds
-Added laser sight, and updated model for silenced MA37

Maps:
Lone Wolf has not been updated - map is still from previous version/build. Will update when it's redone.
Lighting improved on Park and Overlook

Maps:
-Sword base has more detail: ambient sounds, FX, new cover.

Weapons:
-MA37/Reach assaultrifle has better accuracy.
-Most UNSC weapons have slightly more damage
-Machineguns can shoot through certain metal materials/objects like the UNSC crates for example.
-Needle rifle and needler have more damage

Characters:
-Elites have more shield strength, but don't regenerate shields or health as fast.
-Skirmishers slightly increased health
-Grunts have increased health


Fixed a bug on some maps where Elites could only be killed with headshots.

Characters:
-New highly detailed Marine/Trooper playermodels.
-Elite models have more variety, new helmet model as a variation plus occasional mixing of armour pieces.
-Brute minor and major have new, upscaled textures.
-Specops Grunts and Specops Elites have unique voices (Not implemented on every map yet, just nightclub and a few others)

Weapons:
-New weapon: MA37 HBAR (Heavy barrel) with thermal optics. Designated marksman/spotter role.
-Revenant projectile speed increased a lot.
-New texture for Reach assault rifle.
-New throw and bounce sound for frag grenade
-Frag grenade fuse starts immediately after throwing instead of after impacting a surface. Fuse time is around 3 seconds with some variation. Makes grenades way less of a quick cope strategy.

Maps:
-Overlook has more Covenant vehicles, jackal sharpshooter/mortar squad, Covenant infiltrating from the rooftops occasionally.
-Unearthed spruced up with new cover. More Covenant vehicles. Jackal mortar squad on the ridge.
-Park has new cover, lots of decals added, dead civilians.
-Lone Wolf has new cover added. Lone Wolf is still WIP and might be unbalanced with engagement ranges. Will work on it in future updates. Too lazy.

AI:
-AI fire concussion rifle a bit slower.
-Engagement distances tweaked.
-Brutes are more aggressive and tougher.

Misc:
-Player is no longer immune to headshots - example: one needle round or brute spike can kill you immediately.

Update only on Park, Nightclub, and Halo 04 maps, rest will be compiled later.

-New ODST models
-New ONI Site Security model on Courtyard
-Enemy fires Concussion rifle in shorter bursts with longer break between bursts.

-Weapon ballistics improved and made more realistic (Tried to do the math and convert Halo units to real world measurements for bullet speed)
-New crosshairs for most weapons
-AI firing patterns adjusted, added more unique firing styles of different enemies
-Player model changed on some maps
-Artillery strike made way more effective and dangerous, fixed sound bugs for calling in artillery
-Added custom dialogue for generator defence mode.
-Longer engagement distances for most Covenant enemies
-Wraith fires faster with a faster projectile

Not all levels were compiled for the new changes - just the ones mentioned below

Maps:
-Updated Valley map - lots of Covenant vehicles, jackal sharpshooters/grenadiers on ridges
-Courtyard, Park, and Overlook are setup for PVP versus. Elite character should have better camera and movement.

Weapons:
-Updated Covenant weapons with proper gun mechanics and accuracy.

Weapons:
-New weapon: RPG with homing missile
-New weapon: Semi auto shotgun. (Weaker 12 Gauge caliber vs. the regular Shotgun's 8 gauge)
-New firing sounds for Covenant weapons
-Rocket launcher projectile speed increased, removed tracking
-Regular shotgun does more damage

AI:
-Marine and Covenant AI accuracy/firing patterns adjusted more
-Spartan variants updated with more variety and consistency

Maps:
-Unearthed, Park, and Outpost made more apocalyptic.
-Less friendly AI on Unearthed

Lots of misc changes.

-New weapon: MA37 with underbarrel grenade launcher
-Overhaul of Marine AI accuracy
-Balanced Covenant accuracy for certain variants
-Added new Elite variant based off the Specops/Strike team from Halo CE
-Adjusted suppression FX to have less motion blur
-Adjusted weapon sound distances/fade
-Balanced player accuracy for some weapons, especially the pistols which are useful now as a sidearm
-Skirmisher health lowered
-Specops grunts lay down a lot of suppressing fire and will throw lots of grenades in CQB
-Grunt Ultra will overcharge plasma pistol whenever possible