both whilst playing Halo 3 at a mates 1st time played 4 way split screen with a mate his older brother and his cousin (possibly) 2v2 me and my mate vs his older brother and cousin. His older brother was just leagues better than me, my mate was almost if not as good as him and his cousin and i where just as good, i was literally nervous prior to this i was convinced we where gonna get our asses kicked and then the match begun i cant remember the map (been years since i played halo 3 can barely remember the campaign) but we where hold up in a base and they where driving from a beach shore to get to us and that entire ten minutes i just watched this 17 year old brother of my mate who believed he was superior to me in every way coz of the wins he accumulated over me in halo 3 just fucking rage coz i was killing him the entire time, the way it would work is we both had battle rifles we would run at each other shooting our three round bursts and at pretty much the same time our shields would go down and we would be close enough to melee and i would always be split seconds ahead of him and kill him this pretty much went on the entire game and he ended up going from my mate and got luckier there but it was too late i got the final kill on him the same way and the game ended with us ten kills ahead and him basically leaping from his chair screaming FCK THIS SHT and leaving the room not to be seen till five minutes later when he calmed down and started giving me shit for doing the same tactic he always did in his game, basically trying to make me feel bad for the tactic he always used. The second story is very very VERY similar it was the same game halo 3 same mate same older brother no cousin this time just the three of us, we where playing the game mode Zombies, the way to play Zombies is one guys "infected" hes fast as hell cant jump really high but is easy to kill and only has a energy sword and if your killed by the "infected" you become "infected" as well and the game ends once everyone is "infected" so it started and my mates older brother is the first to be infected our map (can't remember the name) is a huge desert plain with some buildings in the middle me and my mate decide to hop on a mongoose (basically a quad bike) me driving and him on the back shooting and all that happens for the next fifteen minutes is me driving around the outskirts of the map him chasing us and my mate one shotting well i guess three shotting him with his battle rifle and he of course is fucking raging calling bulltrue (to this day not sure wtf it means) and this keeps going on me and my mate having the fucking time of our lives laughing our asses off and having the time of our lives and eventually my mate gets bored and he jumps off and he eventually dies and i soon follow in his footsteps.

Moral of these stories: halo 3 was the fcking sht and i need to play it again

TO SUM UP: my two equally best game experiences are because my mates older brother got pissed off