A Search and Destroy (S.A.D.) class all-terrain drone. Often dropped behind enemy lines or into areas of difficult terrain to find and eliminate targets. The drone can be equipped with several different load outs depending on what is required of it, including: missiles (surface to surface/air, EMP), radar, scanning equipment and mechanical arms. Its spider-like legs allow it to traverse extremely difficult or loose terrain without detection.
Inspired by a concept I found on Pinterest (I don't know who originally drew it).