That's the FN C2, and we technically called it a Light Automatic Rifle. Kind of like an old US BAR, but with a 30 round box magazines. The ones my Militia unit had couldn't handle more than 28 rounds or they'd jam. The ones we had when I first joined were "0Lxxxx" numbers, so were among the first lot acquired by the Canadian Forces at a bet. Even had a ziggurat shaped butt catch on some of them.
We had 2 * C2s per 9 or 10 man Rifle section, or at least that was the idea, very much like a SWW Bren group except with double the firepower. E
It was even run by the Section 2 i/c like the Bren groups. Some units, like mine, imitated the US fireteam concept and split into 2 * 4 or 5 man fireteams. One run by the Sect. Commander, the other by the 2 i/c. My pals sure liked it as it was mostly reliable, unless it was one of the older clapped out ones that had parts fly or fall off when firing it. That was awkward, especially in deep snow.