Could walkers be used on Mars? These walkers would range from 20 ton 2 legged machines to 110 ton 12 legged machines with the most common ones ones being 60 tonnes with 8 legs. These mechs are low to the ground. Things like artillery are done by very wheeled vehicles. Infantry isn't a concern & are mostly transported by the aforementioned large wheeled vehicles with smaller tracked vehicles to fight in enclosed domes or catacombs. Sometimes they would fight underground in large bored out caverns where infantry & small (~20-40 ton) tracked vehicles would be a concern. The technology level is near future & planetary bombardment isn't a concern.