TL;DR
Zone clearing automation in late mega base game using the suicidal tendencies of construction bots.What ?
Use our suicidal contruction bot to tell the factory should send some combat bots where they just died. We all had the issue that those construction bots love to travel straigth, ignoring any danger on their course. Instead of mourning the loss of one more construction bot, player could make use of this (note : it''s not a bug, it's a feature
Why ?
Once player get close to mega bases, combat starts to be quite repetive and non threatening (except for players firing a nuke at their feet
Combat automation is covered in many mods but relatively complex system makes it non user friendly (patrol area with circuit logic, robots with limited AI trying to find bitters ...)
Having a system with little change to the game mechanics benefit to the player and (I hope) to the devs.
Because you can expect such system to be a nice ressource sink it won't be of use until player base reach a large scale - you only stop caring about construction bots once you have 20k+ of them. This avoid breaking the early-mid-semi late combat balance that I find quite interresting.
This way, mega base player can focus on building a post deep into enemy territory, connect it with the main base and ... look at the swarm of robots cleaning up everyting on the way. Automation is the way of life for any player reaching this point

The cool things is that this would only clear zone where construction bots would be going (and a bit larger maybe, depending on how much combat robot move around their targets). This alow to keep separated base for example, as no combat robot would never be called where no construction bot is flying. And it also get rid of this anoying spitter you forgot somewhere in your base...
See what I mean Just for info on the picture scale, the grey bands are exactly the width of the red zone from roboport