Don't understand the hostility about the question. But okay, let's do it this way. Who was the opposing team the day the largest crowd ever watched a Tech game in Ruston? I think I know the answer, and you probably do too.
As an example, Tulane reported 19,000 fans per home game last year in the Dome, though most Wave fans will willingly admit they were lucky to have 5,000 butts in the seats. For the New Orleans Bowl, I think they put about 15,000 in the Dome. Couple a bowl game with a long-time or local rival and you're likely to get good attendance numbers.