So in the US Army the M240 is a big deal well art least it is in the Cav Scouts world. You got the 240B that mainly goes on your trucks the 240C that is mounted inside the M2A3 Bradley CFV and finally you have 240L that's used by dismounted teams. We also use the MK19 and .50 Cal on our trucks but that's a different story.
So I was thinking maybe their should be one guy on a squad that can handle explosives to clear barricades with a C4 charge and can setup more advanced defensive capabilities than your regular rifleman. He can also plant anti personal or armor mines, claymore, Ied etc. What do you think dumb or a helpful class?