I have a 11 year old "little brother" through the Big Sister and Big Brother Of America Program. He is hyped about doing some paintballing....even got a new gun for Christmas. I have never been paintballing... let alone even shot one them guns. BUT...It sounds COOL! I plan on taking him and his 11 year old buddy...plus my 20 year old son shooting later this afternoon (Sunday 3/21). How many rounds of ammo can I expect to have to buy? The field fee, gun ,safety gear and 100 rounds of ball is $25/person. I am not sure how they judge your play time, but I figure us playing about 3 hours. I hear this place charges like $70 for a case (2000) paintballs... so I wanna kno' how much this shooting is gonna cost..as far as the ammo goes! THANKS!