Is it dangerous to play paint ball with silicone implants under the muscle?

I had breast implants done 18 months ago. The implants are silicone and are under the pectoral muscle. I have been given a paint balling ticket as a gift and am a bit worried that if I get shot in the chest it could rupture the implant, which will obviously cause pretty big problems. Does anyone have any advice on this? Is getting shot by a paint ball likely to cause a rupture?