Is that an Aussie theme happening with the felt hats, chap on Rt seems multi armed with a M1carbine and what looks to be a Thomson with a stick mag slung on his left shoulder.
I ran around with a bren when a cadet in war games I foolishly thought it would be cool that's until I picked it up was a tad heavy for a 15 y/o but I did get a few of the enemy!