I find it interesting that they
only got 12,400 score for that entry, as I have two entries with similar settings for t7 victories, and got 24,100 for both. Interestingly one entry was Standard speed, the other Epic, and both have the same exact score, so clearly game speed wasn't calculated in. Do note, however, that those games were only G+K, I have yet to submit any BNW games to HoF.
Also, for HoF entries you are not allowed to reroll mid-game, you have to start a fresh new one, so if you rush your warrior and he pops a ruin for culture, then reroll till he gets upgraded, they will recognize that and deny your entry. They know this by checking the session numbers in your submitted save files. If they suspect a mid-game reroll, they will ask you to submit even more saves from that game to verify their suspicion.
My HoF Atilla t7 entries:
http://hof.civfanatics.net/civ5/game_info.php?dsply=&entryID=5115 &
http://hof.civfanatics.net/civ5/game_info.php?dsply=&entryID=5116
This one boggles my mind though, as it's the same settings (but Marathon) but it's a t10 victory that results in 24,100:
http://hof.civfanatics.net/civ5/game_info.php?dsply=&entryID=5118
More curiosity here, two Atilla Duel entries, one on t31, the other on t32, but the t32 got 200 points
more than the t31 for a t32 at 24,550 Here they are: t31
http://hof.civfanatics.net/civ5/game_info.php?dsply=&entryID=5131 t32
http://hof.civfanatics.net/civ5/game_info.php?dsply=&entryID=5129
As you can see, I've tried very hard to maximize a Duel Atilla rush, and can't seem to get under a t7 no matter how hard I tried, although I did get a wide range of scores that don't quite seem to correlate.. Then again, with enough runs as I've done, there's always that chance game where I have my settler pop 4 ruins for two techs, culture boost for free policy, and faith boost for free pantheon in the time it takes my warrior to pop an upgrade, find the enemy, and kill the city (planting the settler right before taking the capital) and sometimes my warrior pops more ruins on the way to the capital, it all depends I suppose. Plenty of ways to boost the score.
EDIT: Oh yea, now I remember... I got the higher scores by jacking city states on the way to the enemies capital, hehe. More cities = more score.