The Irish gave full docking facilities

 

What is this vehicle?

Isn't that one of the mining machines from Total Recall?

I don't know MBP. 2 Clues

1. Soviet military

2. marshland operation.

Another hint, please. 

I definitely know it's from pod 4 in Thunderbird 2, but I can't remember its name.

just for Sunday

 

Zil.

You're a doll, Flashman.  I found it!  It's a Russian Zil Screwdriver.  Amazing vehicle.  Took some digging, this one, and couldn't have found it without the last hint.

done Sunday.

I found a blog which had some additional infrmation

The major downside on this thing is that the suspension is missing. It might be possible to mitigate that to some extent. However the screw is still rigid whereas a track can change its shape follow the terrain. That means you can use it screw propulsion for e.g. a reconnaissance vehicle in very adverse terrain but not for a battle tank, APC or medivac vehicle.
Directional stability may not be the best, it should be possible to use a regular mechanical instead of a series hybrid transmission. So the upsides are lower system complexity, better fuel economy and, lower drivetrain & fuel weight.

These are Russian screw vehicles, which seems to be an area in which they did some development.

Russian mechanized genius/madness. Or both.
I found out that the original screw propulsion vehicle was designed in 1944, during WWII, by Johannes Raedel, a member of the German Army and veteran of the Eastern Front with Russia. (Note: Raedel was originally spelled R’a'del, with an umlaut).He had observed that in the deep snows of Russia, tanks would dig out the snow under the tracks, and the tank would become high centered on snow pressed under the belly of the tank.

According to Siegfried Raedel, son of Johannes..”The idea evolved while looking at a meat mincer, also employing a screw type of compression. He convinced army headquarters in Berlin to allow him to make a prototype of this machine. At that time, Austria was annexed to Germany already and he was dispatched to the Austrian Alpine vehicle test centre at St. Johann in Tyrol. Using whatever materials were available he built this prototype during the period of 10th Feb 1944 to 28th April 1944. It was tested extensively and the first page of this report is attached, together with a few pictures of the original. It was very slow, but it would pull 1 ton! It also had good climbing capabilities. It would penetrate about 30cm into the snow, no more.�?/P>

The photos below are of Johannes testing the vehicle in Tyrol. The woman and children were at a lodge at the top of a mountain, which the vehicle had climbed during testing.

Siegfried pointed out that “something in the order of 7 tons of patent papers were taken out of Germany after the war. What amazes me though is the fact that both the US and Russia seem to have had access to these papers - and this during the cold war period!

I also found that americans developed their own screw vehicle:

Chrysler Marsh Screw Amphibian (1964)

Same principle as the DAF screw vehicle, this one can do 14 mph in the mud 8 mph in water and in the snow up to 20 mph.
The power came from a Chrysler 225 cubic inch, 140 hp, 6 cylinder gasoline engine. An automatic gearbox was used to make the screws turn.
On hard pavement the only way to operate was to roll side ways but not at the same speed as the DAF

Thanks for all the research you've done, Flashman.  I think this screw vehicle is amazing.  Perhaps it's because I can actually understand it's purpose and how it propels.

 

The GPI pictures look like the frontrunners of the snowmobile.

I would see it as a gun tractor, but there is a danger the gun could capsize  if you put them on runners. What about recoil? Couldn't take a tall load eg flak gun for the same reason so I see it as a tractor rather than a prime mover

Magna no, that's ID'd as the Zil by Google I cannot find this Hammerhead; have you a link or pic?