I just have my ESF story (and countless more difficult to describe Supreme Commander victories) which I've put up twice on the board before. I'll tell it again for anybody who hasn't heard it.
Ape threw a tournament at one point to induct a new member into their clan. They didn't really go out looking for members, and you couldn't just ask to get in, but I guess they decided they needed one and I wanted into a clan so I joined their tournament. I don't remember who was even in it anymore, as I think this was somewhere around 3 years back, but I had to win against three opponents so its safe to say there were at least 8 guys in the tourney, and all of them decent. One of the people who was in the tournament with me was... Christ I can't remember his name... he was a really loud player, and somebody who had been trying to get into Ape for months before this tournament came up. He seemed to me to be obsessed about it and I clearly remember Gohan telling me that they really didn't want to bring this guy onto the team so if he made it to the final round they'd all be routing for me. Well he made it to the final round.
We'd run into each other on a server the day before the tournament and Kami came in after us, and he asked us if we wanted to have any rules during the match, like melee only or no beam jumping, whatever, and this guy (Was it Linx? Christ I can't remember) came out and said "NO RULES. ANYTHING GOES." I'm thinking that's kinda lame, I prefered duels with only simple melee or maybe generic beams, or no throwing, or whatever, but he called me a pussy for wanting them restricted and I let him have his wish.
When we played the final round we used a big open man, both of us Goku, and had like 10 spectators for it (Ape, other tourny entrants), and when they started the match the first thing he did was beam jump to the other end of the map and spam Kami torpedos. I beam jumped after him and got tagged by one. They were instantly deadly, and we figured out later that every spectator in the room was the equivalant of a 0 power level character, which made the beams do tremendous damage. I tried to chase him down with melee because it seemed like the 'right' thing to do and I didn't want to win cheesy and he killed me five times in a row with gen beams and Kamehamehas. It was 0 to 5, and the spectators weren't even rooting anymore, they were just making sad comments about how quickly I'd lost. The fifth time I died I was pissed as hell about his cheapo tactics so before I spawned, inbetween his taunts, and typed out that if he wanted to be cheap, I'd be cheap right back at him, and as soon as I respawned I nailed him with an instafragging kami torpedo. Then another one. Then another one. Then I hit him with a kamehameha. By then I was in the zone, and we all know how that feels. I tagged him twice with generic beams from half way across the map, chasing him with them as he teleported. Direct full charged gen beam was enough to frag. I finished him with a kamehameha, having made 10 frags in a row, beating him 10 to 5. Everybody left in the room went nuts and this guy started just going off in full caps about how cheap it was, completely lame victory, and he wanted a rematch, and I just typed out "You said no rules. Those were your words." I believe he responded to that with dots, and then he accepted that it was what he had said and stopped screaming about it. In the end he took it like a champ. A hurt champ, but a champ, and I had my epic victory, along with a place in the clan.
Never had a comeback like that in other games, and I don't believe any other game quite captures the ego-centric fist pounding 'power struggle' that is Dragonball Z. It was quite memorable.
I did have some fun comebacks in Supreme Commander with tactical missile sniping. For those of you who are unfamiliar, in ranked matches the goal for victory is not to destroy the enemy base, but the enemy commander. Generally this happens mid-destroying-the-enemy-base, but there are a couple of ways you can circumvent the unit grind if you are resourceful (and I personally think that's a brilliant game design decision). Some people secretly horde aircraft and suicide them into enemy territory in the hopes of bombing the commander to death before they lose all of their aircraft, some use scouts to figure out when the commander is too far away from his reinforcements and send little fast squads to swarm him, and some people, like me, use tactical missiles. Tac missiles come about half way into the game and cost quite a bit. They're expensive, meaning they completely disrupt your economy during their production, and they are either hit or miss. You only get one shot with tactical missiles, they're dummy missiles meaning they don't aim themselves at the enemy they just go where clicked on the map, and they can be stopped by shields (also mid-game buildings) and anti missile defenses. They're a very difficult surprise tactic to utilize, in serious matches, but they were my absolute specialty. Send a small group of cloaked flying units to skirt the map, build two missiles behind your base, and execute your commander before you'd ever considered a shield. Good times.
Anyway they aren't always useless end-game, they're just way harder to take advantage of. Generally by the end of the game your enemy has shields all over the place and anti missile systems so they only way to nail a commander is, again, to find him sitting still, somewhere away from his defenses. You still need to have your tac missile silos cloaked to avoid suspician, and the reality is, if you're building these this late in the game, it's a desperation attack. I have successfully mounted more of these attacks than I can remember, and every time was fantastic, but one in particular is still fresh in memory. We were on a very small map with a little mountain in the middle and three starting areas (I am not particularly strong in ranked games with big areas of open territory accessible early on). The game started out normal enough, but I was quickly beaten back into my starting area by superior tactics, and my opponent took over the other two thirds of the map. There were massive waves of tanks running into my defenses keeping me from expanding, but my opponent got ****y. Ego is incredibly dangerous in such a tactical game and he was going to pay for his time wasting. These ranked games are fairly serious business when you're up in the top 2000 like I was and preserving my ratio was important so I launched my tried and true desperation measure. I had a cloaking device (small radius, heavy power usage) in the middle of the map that I'd built at the very start of the game. He gave me about 10 minutes while he built up his massive army of units to swarm my walls in some fantastical fashion and I bled every scrap of what I had into building two tactical missile silos and about ten cheap crappy tech 1 bombers, all I could collect before he moved his units in. I knew he wanted my base wiped out, and he would have his map zoomed in on my commander, micromanaging the little bastards while he was attacking me. It takes two to kill a commander, and his commander was under a ton of max-teched out shields, but I had a plan, and he had no clue. There was one spot near his commander where he had a power generators and shields stacked together (one can blow up the others if they go up, but it lets you overlap shields) and he had four very large power generators right next to one another. I let him attack me, and once I saw his units had come all the way inside of my walls and were attacking my commander, the moment I lost power and my tactical missile silos were revealed and starting taking artillery hits, I launched them off with my bombers. My bombers hit the edge of a power station right south west of his commander, causing them to detonate, which punched a whole in the shields just big enough to fit a tac missile inside, and the two missiles took out his commander right before mine exploded, giving me the victory. That was fairly epic as well.
