With the addition of possible Flyer Drones (PGH-9002 1/144 original movie models), the idea of detection drones takes to the air. These Flyers usually engage air targets, but could readily be used for air recon as well - prompting counter air operations similiar to WW1 IRL counterrecon patrols! Good stuff!
The Second generation of Martians ends up on the defensive. They will be able to sneak into human territory and have the need to sniff out ambushes, but it will be the humans on the attack, and the Martians needing drones to set ambushes. I's hard to hide a sixty foot tall tripod.
Scientists will be on missions to snatch human technology and to try to learn how to beat the prey that stings.
Of course, tactically I will need to get my Anti Tripod guns up front. The drones will only ever find one ambush.