There was this one guy in a game of firefight. A group of three kept trying to spawn a warthog and ride together. This one rando would wait by the vehicle spawn location so he could quickly hop in the passenger seat, preventing the group of three from rolling together. The other guys were getting mad and Spartan charging the hog, trying to topple it over and cause him to get out. Then he got in the driver’s seat and honked the horn for two of them to jump in.
I enjoy Spartan charging people off their sniping or longshotting ledge. Creative, no, but effective
Also I like to pick up enemy reqs after I kill them (while I’m pretty sure they can see me on their death screen) and start wasting ammo in their req weapon (also works with power weapons in arena) like “I killed you, stole your gun, and I’m not even gonna use it wisely”
Well the game can get quite creative:
Ghost explode.
No round for you.
Sorry for the long videos.
As for players…
The only actual trolling I remember was from Reach and Halo 4 when a team mate would stand on top of the Mortar Cannon.
Killing yourself, or heavily damaging yourself when shooting.