The lead vehicle is faster than the others, take the Armour off. This looks like a pre Sat & Drone Thermal Image landing. The area should be cleared before by Rockets, Antipersonel & Antitank, Automatable at range.
Rocketed positions still produce Heat & pose a threat, send the Target ahead & identify a surviving Rocket position.
Anti personnel Rockets are Kiloton Warheads
Rocket depletion
Grenade launchers a very effective & can drop into a defensive position at shorter range. Automation for speed & accuracy, Mortars can be accurate too, Wind speed, Ariel observation & Automation.