If you're using excel and it's not giving you a pull down it's likely a compatibility issue or something. I switched to LibreOffice after getting the same headache (and several others) and it works just fine.

Posted all of three of the original Cold Navy boxed set ship miniature status cards on Facebook in the Starship Miniatures Group for those with access.

Added a Heavy Missile Fighter to this fleet today. Just sayin'.

Yeah. I paint the whole ship.

Nice job on those btw...and thanks! Always nice to see my designs enjoyed.

That would fall under the latter half of my prior answer then.

Nice to see this.

I think the intent here is that the weapons have to be have LOS to the target (via appropriate arc) so that their targeting systems can lock-on to it initially...even with the battery firing them, the battery would need to be able to target them. 360 would only be appropriate if the ship was using a central targeting system rather than individual battery based...but even then, once fired, the seekers would require updating which could theoretically be jammed, leaving them in target limbo.

Honestly, there are several ways to interpret the why's, how's, why-not's on this...but logically my initial statement seems the most likely.

Sooooo...you're saying you've lost face in their books, eh?  That sucks. lol

Yeah.  But range gets sacrificed to a degree, which hurts. And, while when they hit they hit hard, multiple smaller and less costly weapons actually out perform them over time. Not to mention few large weapons suffer from 'all the eggs in one basket' syndrome when taking damage. The trick is to find the happy medium with one or two nasty packages while still having enough peashooters to stay effective in the fight longer.

It is the common sense rule. If you have a speeder/hover bike for instance then it will be able to deal with any of the listed terrain. If you have a jet ski then obviously it will only be able to access Ocean/River and possibly open swamp (though there may be a risk of being fouled by weeds and such). A tracked type of mount would have difficulty with anything but open terrain. In short, it depends on what type of mechanical mount is being created in how the terrain restrictions are specifically applied.

The rules were written to be generally flexible rather than rigidly defined so folks could model what units they want with a bit of ingenuity on their part and less of a catalog of a unit section.

(as to the late reply: I've been dealing with a cheating spouse and subsequent divorce/custody battle, holding down multiple jobs, multiple immediate family deaths, and am now battling cancer and insanely high bills these last six years. So my priorities have been a bit demanding. )

Those that have been watching the Facebook groups I am involved in already know this;

I have over 200 ship miniature STL files I have designed posted at the link below; most for free if you have a 3D printer. For those not having a 3D printer, I have an agreement with Pulsefire Printing (US) and 3 Dimensional Dreams (Germany) allowing them to print any of the ship designs posted on the linked site should folks wish to order them. Ship sizes mostly range from 12 mm to 100 mm, give or take, though there are several ranging into the 120+ mm range. Stations, a jump gate, satellites, etc are also part of things designed. So if looking for something a bit different than the usual fare, check things out.  

https://cults3d.com/en/users/Go0gleplex/creations

Personal Mounts-
Each trooper in the squad is issued a personal mount, either organic or mechanical in nature.  Organic mounts can be horses, giant birds, sea creatures, or the like. Flying creatures are excluded from this due to things like saddles and such interfering with the ability of the creatures to fly.  Mechanical mounts can be motorcycles, hover bikes, ski-doos, and the like.  Again, actual flight type vehicles are excluded since this is covered under separate equipment…and no politician cares to spend that much money just to equip some uneducated grunt.   Both types of mounts are listed below with their advantages and disadvantages.

    Organic Mount   
    MP x3       
    Thermal Signature +1        
    Terrain Limitations: Ocean/ Deep water or Any Land   
    EM Cost: 1   
    Offensive Modifier: +1

    Mechanical Mount   
    MP x5   
    Thermal Signature +2        
    Terrain Limitations: Ocean/ Deep water, Heavy Forest, River, and Any Swamp or Any Land       
    EM Cost: 2   
    Offensive Modifier: +2

Basically: The Terrain limitations are what the mount can access. So if an Organic Mount is aquatic it is obviously limited to aquatic terrain. Or a horse...is limited to any Land. Why not swamp too? While it is possible to traverse a swamp on a horse...it is far FAR more trouble than it is worth...and is faster on foot or by boat. (I grew up riding before I could actually walk so have a bit of first hand experience on this one.) Hope that helps.