The design for the X-1 amphibious quadrupedal mining platform is reputed to have come to Kaiser Vlad in a vision. The two prototypes constructed at the Vampfvaggen plant feature technologies "borrowed" from all of the major global powers.
The Mining Spider is the main target for the final mission of Battalion Wars 2, as it plumbs the Tundran depths for the Staff. On approach to the monstrosity, Marshall Nova deploys a powerful Battlestation to bring it low. As the Battlestation's guns are the only ones strong enough to so much as scratch the Mining Spider's paintjob, it must be protected at all costs. Assisting in this matter are several battalions deployed by other Alliance members, though all of them either come under fire by Xylvanians or are captured in Ubel's gulags. In the multiplayer Co-op mission "Under Siege" you must use Bombers to destroy the Mining Spider outside Gorgisburg.
When the shields are down, simply shell the spider with the Battlestation. Its laser defense batteries are of little concern to the Battlestation's armor, though if added to a concentrated assault the damage can rapidly stack up. The Strato Destroyers can be easily handled, just order your Fighters, Anti-Air Veterans and Anti-Air Vehicles to attack them. Their lack of rear-facing weaponry and their size make them vulnerable to missiles, especially at their elevations. The best way to avoid damage is to circle around the Spider while firing, like in a Light Tank, though be careful not to get caught on any terrain. Be sure to destroy any Heavy Tanks as you circle, as these can drain your Battlestation's health; they can easily be destroyed before attacking the generators, however. In multiplayer, fly downwards at a steep angle while bombing to get more bombs on-target. (This strategy also works with any bombing run against any enemy). Be sure to keep moving or else the Mining Spider will have time to focus it's lasers on you.
- The Mining Spider alludes somewhat to the second Death Star in Star Wars. Once you destroy the shields, Kaiser Vlad will say, "Now, witness the power of this fully armed and operational Mining Spider!" the destruction of the shields also alludes to the shield generators on Endor in Star Wars: Return of the Jedi.
- The design for the spider is said to have come to Vlad in a vision, and only two prototypes were made, both at the same plant where Xylvanian Battlestations are made.
- It is not known exactly how the Mining Spider is transported, who operates it, and how it extracts items such as the Staff.
- In the unit dossier, the Spider is stated to have various technologies "borrowed" from most of the other nations. This invites the theory of industrial espionage.