I've never been a huge fan of paintball, but that's because I tend to get bitchy about things that make combat out to be fun. Plus it teaches bad habits about firing on the move and fire discipline/ammunition conservation.
One thing it does teach, however, is that standing straight up in the open is an excellent way to get shot in the face. And if the super-slo-mo here doesn't do it for you, I'm not sure we can be friends.
(Thanks to sexy reader Cory for the tip.)