The first premium tank with hydropneumatic suspension - the Stridsvagn S1!
This tank has the "rail gun" 10,5 cm kan strv 103 L / 51. A very dangerous opponent on the battlefield.
This model is from the game World of Tanks (get it here: www.worldoftanks.com)
Unfortunately due to some limitations the tracks have not loaded correctly. If you would like the (non-repaired) model, then just ask. Feel free to then upload your version as a remix.
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Happy Printing!