This Remnant model appears to have been designed for excavation. If provoked, it enters a "siege mode," where it anchors itself to the ground and launches explosive projectiles at a target. In this mode, this Remnant constantly runs a self-repair cycle, reducing damage from incoming fire. Peebee claims that this characteristic is what earned it the name "Nullifier."
Recovery of Nullifier parts has been illuminating. They use both balancing pitons and dense ferrofluid reservoirs in their lower extremities to remain stable while firing, design characteristics that could be useful for Initiative mining operations. Their blast shielding is also surprisingly light for its thickness (72mm) and density. The plates are cushioned by a honeycomb of shock-absorbing polymer to distribute any ballistic force. However, these characteristics are also what allows them to absorb heavy fire and act as formidable opponents.