TL:DR; First:
- Battle Royal (though not entirely original, it’s application for Halo will be unique and thus Innovative)
- Brand New Rewards System (which I’ll talk about below)
- Advanced FireFight
- Hero Team Shooter (Spartans vs Elites vs Brutes vs Grunts vs Flood)
Halo Needs Innovation. OR, Halo needs to keep up with the modern titles or get lost in the Dust.
OR, more likely, it needs both.
Before reading my specific explanations, please note that by no means is what I’m suggesting perfect, balanced, fully practical nor is it trolling, lackadaisical, or meant only for comedic purposes. I hope instead that you get my high-level point. My vision.
Explanations
- Battle Royal
-New Mombasa Map
-Playable Elites, Brutes
-Elite Drop Pods from halo 2 with the Wobbly mouths
-Brutes + combination melee system
-Human drop pods (ala delta map halo 2, halo 3 odst)
-Optional mid-air eject from drop pod, subject to flying and landing only in water/soft areas
-New abilities specific to BR mode [Didact’s force, glass wall vision, teleportation, jet pack 2.0, speed, wall crawl, anti-gravity gun]
-Redundant weapons in each gun-tier (5 types of BR, 5 types of AR, 3 types of RL, etc. Different scopes, Different fire rates, Different range, Different gun models, sounds).
-Loot boxes via the armor lockers in HI carrying custom weapons, custom abilities, custom nades
-Going outside the safe zone will have you being attached by the Banished sniper jackals, and green gas from Flood, and you might randomly get taken by the Vines of a gravemind to instant death, it will be a randomized gamble which you may or may not survive for long.
-Call in pelican to bring in marine bots to work alongside your team
-Call in phantom with covenent trooops, or banshee to bring jackal bots to work alongside your team (if they couldnt fly it before they can now)
-Command suicidal grunts to be thrown if you are playing as Brute
-Prophets will be scattered across the map and if you manage to access 1 of the 3, your team will have a host of new abilities, such as player identity theft, marking foes as enemies, being psychically downed to your knees remotely.
-Oh yea and you can down your players now, either crawling, or be prone and pretend to be dead, but will show up glowing so as to not be completely ignored.
-Host of new long range weapons (bow and arrow banished version green fire, sniper rifle 1 shot long distance boost, blue flame thrower)
-Winning team gets 10 seconds of glory showing off your team’s walk, team’s stance, team’s coating, weapon loadouts and custom team music
-Oh yea, you’re team gets a custom walking animation, and team music, which you have to choose from list of halo soundtrack pieces cropped.
- Brand New Rewards System
-After every 4v4, big team, rumble pit match, you get to remove your helmet and show your human mapped face, along with your custom stance, choice of weapon and pre-selected choice of glorious camera angles.
-You will be given an editor where you can make up a cool custom stance, it will be nsfw-validated, and you can customize your walking animation, head tilting, helmet take off animation style, and custom music to play when you win. No longer will you only get 2 seconds of glory, you get 10 second reward to glorify yourself to the world and be rewarded for your win.
-You will have an pre-selected option on what to do to the other players who lost, you can select option like “line them up in a line and shoot them with a sniper all at once” or “lay them down in a row and walk over them”. Again, will be pre-selected options so will automatically be nsfw approved.
-In-Game taunts when you kill an opponent, will be a “post-kill” assasination-esque taunt, you can select from various options like “kick their dead body for 2-3 times”, “hump 5 times while spinning and firing a plasma pistol”, “drag opponent by hand and lay them to the side or toss them over cliff”
-You get to customize audio to enemy after you kill them, you’ll get 2 seconds to talk trash to enemy, via pre-selected nsfw approved text. It will be spoken through your A.I. and heard to them from their armor suit which happens to have some leftover battery of 2 seconds to allow playback. Makes sense? no? make it make sense. You know what I want here.
-Winning previous match gives you extra time to show off in pre-game lobby with a host of SFW taunts and gestures.
- Advanced FireFight
-Stats, stats, stats. For everything.
-Damage done stat, kills stolen stat. 10x current list of achievements. Achievements for everything, meleeing 5 grunts, achievement, headshotting an elite while it’s moving, achievement, sticking a flying thrown grunt with a sticky? achievement. Dropping all your weapons and being shot at and surving? achievement.
-Flood pod infectors, covenant flood, human flood, spider flood
-Prometheans
-Sentials
-Blue Team
-Arbiter
-Rogue Sgt. Johnson, Rogue Captain Keys, Rogue Cortana (unkillable and just for fun), Rogue teammates (rogue cortana infestation, not just for fun)
-Elite’s dropping down on drop pods with wobbly mouths (yes im obsessed with halo e3 trailer, eat my shorts)
-Dying will make you spawn in starship with a shared gulag type setting, where if you win you get to go back to your own team, if you die, you get shuffled into a different FireFight game with swapped stats (won’t count against your stats however, will be offsetted)
-Dying can also make you spawn as the enemy Covenant and fight against your own team. Oh yeah. They won’t be able to see your gamertag either. You won’t be able to teamkill your covenant friends, and not shooting at spartans will make you downgrade from brute to elite to jackal to grunt to flood until you won’t have anymore second chances. Bye bye.
-Since you cannot win in firefight, what will end up happening when the game decides that you’ve plateauted, it will increase the wave by 10% and 20% and you’re armor and visor will start to break very slowly, 5x slower than in Reach, until it becomes harder and harder, but there won’t be a timeout to FireFight because this is advanced firefight. You stay in the server. 343 will get alerted after 24 hrs if your still in there and will increase wave by 400% and kill you off then just in case you found a nice glitched camping spot.
- Hero Team Shooter
-Basically, in other games you have hero shooter elements, character classes to choose from. In Halo, we’ll do this where the entire team has to be one character class. Either spartans, or elites, or brutes, or grunts, or flood. If you choose spartans or elites, you get 4 players on your team, grunts, you can have 8 players on your team, brutes, 3, flood, 20.
-Character abilities Elites - elites will be able to roll, strafe, dive, kick, yes they will be able to kick as their melee, and break you in 1 second.
-Character abilties Brutes - brutes will be able to punch you and end you in one blow, increased health, ape-run fast, grab thrown grenades and implode them in their palms (reducing damage). Yes brutes will be boss like that
-Character abilities Grunts - can throw 2 plasmas at once, can go invis more often, can dig a hole and hide under for 5 seconds, can crawl in the ceiling for 5 seconds
-Character abilities Flood - can infect other teams
OK. There you go folks. The PRICE OF Innovation. ALL out IMPRACTICAL seeming ideas, very rough, wild, Crazy, and absurd, and ridiculous.
BUT, this is what innovation always looks like prior to being implemented.
is to much customization for something that can be made in a simple way. Like being able to control your stance and what you do will lead to sexual misconduct. Like custom emblems in Call of Duty but with Male Elites having fun with Female Spartans 
that sort of thing would create all types of problems.
of the Halo Universe Armory and Lore behind it the UNSC aren’t as OP like in every Halo game. Which is why a experience that not playing as Spartans would be very interesting and all the possibilities.