[@Aristo]

AU8 Avenger that can be bought and slowly repurposed?
Remote drone controls?
Drone launchers?
Drones?
3-D holographic mapping (this would have to be heavy on CPU and weight, otherwise EVERYONE could have it and that'd defeat the purpose of a combat controller... >.>)?

Oooooooh, 30mm Phalanx CIWS gun, modified for mech use?