I love spider tanks, ever since I watched that episode of Ghost in the Shell: Stand Alone Complex, with an experimental spider tank going rogue.
Most of them consist of three main parts:
- The forebody, which mainly contains the sensors, the ammunition holder of the primary (machine gun) weapon, and the Central processing Unit.
- The post body contains the power generators, the ammunition holder of the secondary (railgun) weapon.
Regardless of type, all spider tanks possess
- 3 pairs of legs, which are made out of artificial muscle tissues(more precisely, vanadium dioxide) and have a few traits designed after the world's cutest spider (the combination of a few). These legs are usually protected by reinforced plates and have claws and retractable wheels on them as a way of faster travel, and more effective climbing.
A military spider tank from Ghost in the Shell: Stand Alone Complex (video link in the picture :)
Their armor and weapons are mostly dependent on their size. Larger ones usually have a "stinger railgun", that can be moved around with a high degree of freedom, enabled by the same types of artificial muscle.
Even the heaviest ones are relatively light-weight (because they're mainly built out of carbon allotropes), as all spider tanks are capable of jumping up to 15 meters high, via their powerful legs.
Now, I wonder, whether these tanks have some sort of a "fatal flaw", that I overlooked (we're talking about modern day and near future settings, the 40k one was just there for the lulz)?