My first kill was on Blood Gulch. I was in one of the bases and about to sneak up on another player and stick them with a sticky grenade. I poked around the corner and tossed it at him all pro like. But it ended up catching the side of the wall I was up against and stuck to the side of my helmet. Not willing to accept defeat I charged at him and took us both out. Now that’s what I call getting -Yoink- done.
Multiplayer-I splatter my friend with the Ghost on Headlong in Halo 2. I was a young lad.
I don’t remember my first campaign kill though.
Oh yes now I remember I was 4 my dad had molded my Xbox and had halo legitly on a disc thought I “accidently” ran over marines… Hey I was 4 btw I am13 not a squeaker if your wondering
On xbox-live:
Halo 2, 1-Bomb Assault on Headlong, BTB
Killed the first guy I saw with the BR…i was ecstatic cause I couldn’t believe I was actually playing other people lol
7 years ago, remember that grunt on Pillar of atumn? Well his not anymore.
for halo 2 my first kill would deffinetley have to be a memorable one and it is, on delta halo i killed my entire squad with a deployable cover
Headshot with a sniper rifle in Team Snipers on Standoff (I was kinda late to the multiplayer scene).
my friend had one of those cool new xboxs with those giant controllers and some hot new game called halo that apparently was all the rage.
we started co-op on the 2nd level halo and i was all disoriented with the controls b/c i’m an inverted guy. some crazy purple/blue alien thing was gunning me down and i sprayed wildly with an AR that had what felt for one brief moment to be a bottomless mag. it roared angrily as it collapsed spraying purple blood everywhere then i fell off the thin double bridge thing to my death, arms flailing
so yeah i remember, good times
My first kill was Commander Keys in Halo CE after he gives you the magnum at the beginning . My follow up kills were as many marines and crew as I could kill before they inevitably killed me. Rather sad, and I don’t even remember why I put a bullet between the eyes of Keys. Guess I just wanted to shoot something and my cross-hares were lined up on his forehead.
I grabbed a Ghost in Halo 2. Need I say more?
Halo custom edition triple kill!!!
I was 19 years old. I was other my friend’s house. He asks me “ever play Halo?”. I say no. He fires up his old Xbox with Halo: Combat Evolved and we go into hang’em high. My first kill was gunning him down with the AR.
lol, my first kill was my bro in CE, as soon as i got the gun, being an idiot 5yr old, i killed my bro, lol i still smile on that today…
Halo 3 was my first Halo, while unfortunately I do not remember my first kill in campaign I do remember my first in multiplayer XBL. I got the game in March of 2008 and did not get XBL until August. My first match was in Basic Training, FFA on Guardian only Assault Rifles and Battle Rifles were on the map. I kicked -Yoink-, 4 players at start and 2 guys quit later on so by the end it was me vs 1 other player and I came out on top. Final score was 24(Me) 21(Him)
So many memories with Halo 3, 4 years ago from now lateish 2008, those were the glory days of Halo 3 for me. Reach just didn’t have that same spark, I mean it was ok but it didn’t grab a hold of me like Halo 3 did. I got Reach in late July of 2011, but didn’t put in nearly the same hours I did Halo 3.
First match of Halo 3(and my first Halo match ever)
Can’t wait for Halo 4! Got the Limited Edition pre-ordered already 
Lets hope it brings that Halo spark back!
CE: Myself on Sidewinder with a sticky.
Halo 2: SMG on Ivory Tower.
Halo 3: Pretty sure it was magnum on Narrows.
Halo Reach: DMR on The Cage[
My first kill was my friend on coagulation. For Campaign I think it was a brute because I started playing after the gravemind cut scene.
Killed that same grunt… or maybe his buddy…
I’m not sure.
Halo 4. When that Elite charged out of nowhere with his Energy Sword, and I punched him the face, and then threw him down the elevator shaft ;D
For real though, Halo 2. Those charging Grunts with their Elite leader after they blasted through the door, and I just mowed them down with Dual SMGs. 
That was my first Campaign kill. As for Multiplayer, I can’t remember. 
Though it was probably Midship, slaughtering everyone in Rumble Pit with the Energy Sword. >:D
No, but I remember the first time I killed an elite specifically in Halo 2. I was playing co-op with a friend shortly after it came out, we were on Cairo Station. I had dual plasmas I think, and when I finally killed him my buddy congratulated me for my accomplishment. Needless to say I wasn’t too great back then…
why halo 3? my first kill was in a big LAN party halo CE CTF sidewinder. Don’t remember how it went down. All i know is i should have died but i got lucky.