Hah... I looked into that some time ago, when I had the Tamiya's F-4C/D on the workbench. Tamiya's instructions gave only TS references (their acrylic lacquer spraycans range) and I haven't been able to find suitable references in their X/XF paints. I ended up with scrapping most of the paint and going the Humbrol+Lifecolor way, the Lifecolors being IMHO the closest. BTW, Lifecolor is a real SOB to thin ans spray correctly - do spray a matt primer first, or the paint will peel.
Anyway, here's what I came to:
Tan FS30219: Lifecolor UA015, Gunze H310, Humbrol 118, XF-52 is the closest but not quite Medium green FS34102: Gunze H303, Humbrol 117, XF-?? Dark green FS34079: Lifecolor UA091, Gunze H309, Humbrol 116, XF-?? Light grey FS36622: Lifecolor UA021, Gunze H311, Humbrol 28, XF-19+X-21:1