halo 1 trench run, halo 3 was good, but it didnt capture the 'ohshitohshit' feeling as well, mostly because you could sit motionless for like, 30 seconds and have no consequences other than no more goofing off. my fav memory of halo is this; when i was around 11, my game skills werenot yet fully developed, and my brother (16 or so at the time) liked halo legendary. we would play through the entire campaign, me barely surviving. then, we were in the trench run.i have always been the wheelman, so i hop in and he gets in the gunner. we make it with 30 or so seconds to spare when all of a sudden BOOM -spoiler-
Echo 419 gets blown to hell, crashes off screen, no matter how you try to save her.no time to grieve though, we jumped back in, and cortana told us there was ONE ship left in the hanger so we hauled ass as fast as we could to the waypoint, dodging fire and stray fuel rod shots, dropships flying overhead, turrets, and those exploding flood bastards,made the big jump and barely stayed upright, drove down to the hanger, almost there and... it was blocked off! there was a maelstrom of flood and covenant fire, and we were both low health, we got out but just as we were getting out, my brother dies, leaving me to finish it! i stop, he yells at me "Go! NOW!" i run, i take fire, i pass an elite with an energy sword, my shields drop, my health lowers to 2 bars, im eing chared by flood and... i make it. we sit back and watch the cutscene, making a break for it JUST as halo explodes! then, all is calm. we watch, and learn that 'were just getting started".
overall, my best moment out of halo, as its exactly the type of frantics i enjoy. to be honest, i also like the dual scarab fight in halo 3, but they took to long to explode, so i would have my friend take the longer, more dramatic way to the top, and then i would pretend to have to stabilize...something, and we would leave just as i heard the shrill explode noise.