I did something like this but with a few differences at my local navy base called HMS Collingwood in a town called Fareham we were told it was called the gun run. I was doing this 12 week group at the time called the princes trust but we only had 2 weeks to train while all the others had a year or more. It was a bit different for us we did not have to load and fire a blank or anything just run to one end while doing that had to assemble the whole gun. Like may be saying it wrong as was years back i was 21 i think now 30 but you first run to the ammo cart lift one side put the wheel then rope on and then the peg to keep them on do the same for the other side. Take our positions on the rope and run it to the cannon attach it to the cart run with the whole thing to end of the course then circle back in a semi circle and run with whole gun to the finish all as fast as we can. As quickest wins cant remember if other teams were on at same time or we took turns was very tiering i did not want to do it but was made to lol. We did not win but we were told we did good for for only having 2 weeks to train i would not do it again as also not as fit lets say lol as was then have a belly now due to my own reasons had good food at the base and was kinds fun a little if you like doing that.