Sounds just as confusing as the plot of MGS4, no? Basically, there is a new video out that features the voice actors of the MGS games (Raiden, Snake, Roy Campbell, Naomi Hunter and Otacon) all doing an improv session. The idea behind the skit is that they can’t separate the game characters from their actual lives.
It’s completely made up on the spot (improv, duh), and is sometimes bizarre and somteimes hilarious. My favorite bits are when David Hayter busts out the Snake voice, and when they jump in with the “Snaaaaaake” bits. Some good stuff, give it a watch.