I've added a few support weapons to my Z Force unit, Peter Pig modern US again. They're mounted on 2p pieces for use as weapon teams in Force on Force.
The Browning .50 cal teams come with some extra crew but they've been incorporated into the infantry. 3 crew per base would make it rather crowded anyway.
I also have some M240/FN MAG gun teams, though I haven't taken a particularly good photograph of this one!