20mm Falklands project - Argentine .50cal teams

Back to one of my longest running projects and I'm hoping to concentrate on my Argentine forces. First up are a couple of .50cal teams, Liberation figures. I'm basing them on a single 3 man base with a look of the Longdon positions, so rocks on the base.
What I'm starting with

 For the rocks I'm using some bark stuff I found on line

 The 15-25 refers to the piece size in mm, here's a close up

 I'm painting the crew separately then add them after the bases are nearly done