OK, Defence has an exemption from the Navigation Act (Fed) and the various State Acts when it comes to operating vessels/ships, etc. But in most cases they comply through their own desire to be uniform in the industry.
The International Rules for the Prevention of Collisions at Sea are the State, National and international standards. Part C specifically relates to Lights and Shapes. Arcs of visibility are;
Rule 23 PDV
Masthead Light forward, plus second Masthead Light abaft and higher than the forward one (white 0 +/- 112.5 deg)
Sidelights (Red 0 -112.5 deg, Green 0 +112.5 deg)
Sternlight (white 180 +/- 67.5 deg)
Rule 27
NUC is two red lights 360 deg in a vertical line AND when underway it's sidelights and stern light as well.
RIAM three lights (red white red, all 360 deg) in a vertical line AND underway everything in Rule 23 as well.
Mine Clearance three lights (green, all 360 deg) in a triangle seen from ahead AND underway everything in Rule 23 as well.
Rule 30 Anchored
On the bow a light (white 360 deg) and aft and lower than the fore light, another light (white 360 deg)
ONLY vessels > 100m legally require their deck lights to be illuminated at anchor, vessels smaller may do it.
Rule 24 Towing
Sidelights (Red 0 -112.5 deg, Green 0 +112.5 deg)
Sternlight (white 180 +/- 67.5 deg)
Towing light (Yellow 180 +/- 67.5 deg)
Mastheads extinguished and replaced with two mastheads (white 0 +/- 112.5 deg) in a vertical line. [if overall tow exceeds 200m then 3 mastheads in a vertical line]
There is a distinct reliance on the display of these lights at night, and therefor many builders require duplication for the purpose of having redundancy, hence why you may see extra lights. The range of visibility isn't something too concerning in scale builds, but in real world should be 6Nm for Mastheads and 3Nm for everything else.
Glen, I'd be surprised if they were fitted with the Mine Clearance Lights?????