A slight historical correction: It was not the battle of Thermopoli.
The battle of the Thermopolis has to do with the invasion again of the Persian Army and the heroic resistance of Leonidas and his 300 brave soldiers.
The marathon run referes to the battle of Battle of Marathon who took place in the area of Marathon the rest is correct.
However it is cleared that most of the classic sports have origins from war-related activities.
The difference I believe between paintball and other sports that use "weapons" bow, air-rifle etc is that in paintball you actually have to shoot living people in order to win and not targets so in a sense it promotes modern war.
But then again we have sword fighting, which uses a weapon of the past to kill the opposion, but through the ages it was started to be considered as a noble sport.
And as well boxing, wrestling, judo ,taek wo do, where athletes use combat techniques to knock out the opposition.
What can be made in my opinion in order to see where we stand, and what our chances are :
1) See what newly-entered sports like beach-volley ,trampoline had to accomplish (some participation numbers and a good presentation i believe) and sail to the same direction.
2) National federations in assistance with millennium and nppl officials should approach their local Olympic commitees.
Many wide-spread sports, like karate or water-ski haven't make the cut and have more chances than our sport to make it sooner in the Olympics, so If we really want to join the Olympics everybody must work hard towards this common goal