Paintball RCXD

Very cool concept, although I had to ask a friend what an RCXD was when I watched this (I'm clearly not up to date on my videogames). Couple failings I might see would it being light up by opposing players (I doubt it could withstand 50 paintballs coming its way), and having to maintain line of sight, so you where you're "detonating" the darn thing. Nonetheless, I'm sure this would be very popular at a field!

Have any of you built something for play that's radio controlled? A tank? UAV? Drop Grey Ops a line and show off your creation.