One of my best, and worst moments was in halo 3 last year, it was Cature the flag on vallhalla, we were on offence, me and my friend started and ran stright to the only warthog, but two other guys got there first and started to drive of, we fired a few shots at the hog and they turned around to let one of us in to the passenger seat, my friend and I both threw a grenade under the hog, it flipped over and both of them were thrown out, We ran over, flipped it upright, jumped in and zoomed of in their warthog whilst pissing ourselves laughing at them,
(we got the flag tho, so it all ended out ok)