Prepare to repel boarders! (NB: Although shots are fired in the next couple of videos, there is no blood or gore.)
Once upon a time ... Personally, I'd have picked a .308 for this, like an M-14, but, OK. I guess if you only get one rifle and you might have to get up close and personal ... (Oh, sure. Go with the .50. See if I care.)
[Update from a more sober TD: I don't usually claim to know more about firearms choices than the professionals who do this for a living, but after three or so drinks I become an expert on many things.]
Brothers in Arms
"... and though they did hurt me so bad, in the fear and alarm, you did not desert me, my brothers in arms ..."