USMC had their own Utilities until about '68-'69, before changing to the "tails out" blouse in OG-109.
Which then went through a bunch of changes. Confused even more by the ERDL camo going to SEA
What I want to remember is that AF (other than in SEA( kept their tucked-in OG-107 (or whatever Shade the AF called that) Fatigues. They were last to adopt the Woodlands BDU. DeptNav bought enormous quantities of solid OD 'BDU' uniforms with a minority, special units "buy" of Woodlands camo. Eventually, that flip-flopped and the buy was 80-90% Woodlands, with a minority buy of solid-OD Utilities.
I'm pretty sure Stick is right about the Field Jackets, other than I want to remember that one of those models had angled pocket flaps rather than straight.
The tough part is the LBE & web gear--once the M-56 gear is introduced. Which is the other fly in the ointment for using Marines to sub in--782 gear remains unique to the Corps until about '70-71.
Which is why the ALCE & LC-2 gear was made so adaptable--so it would accommodate all of the legacy gear in inventory.