These are modern USMC rifle squads advancing, from Elhiem (MCA02). Each squad comprises 3 M16 armed marines (one with a UGL on left of rows) and a SAW gunner (on the right).
Slightly closer view.
These were all painted the same way as the USMC squad leaders posted previously.
On the workbench now are three packs of MCA03 USMC squads in firing poses.
Thanks for looking.