It was something I hadn't done in a few years, but I don't remember my whole body hurting the next day when I first did it.
So I went paintballing with some friends at the local field. We ran, dodged, rolled, kneeled, went prone, and did things that I shouldn't have done with me being so out of shape. The welts from balls that bounced were the least things that hurt. In fact I only remember a couple balls breaking, so I got to stay in longer. Then there was the fact that I could barely see out of the goggles which caused me to trip and slide face first, right before jumping back up and laying 100 rounds down range from the adrenaline.
Infact it was so much fun that I am going to buy my own equipment, however I am also buying a gym membership.
Ow, ****, my legs hurt too much to stand.