I really love your game, I love all the turrets and I enjoy going through the extra work to transport oil to the front to be able to use flamethrower turrets.
I even build them at mining sites and go out of my way to make sure they always have oil to burn away threats to my mining drills.
viewtopic.php?f=18&t=47404
Unfortunately the flamethrowers are not very compatible with repairing construction robots, since they will always try to repair walls (which are necessary for efficient flamethrower turrent usage) even when there is still fire raging right in front of the walls. So every time the enemy attacks my walls, my drones fly in and get burned. More robots come out to repair those bots and spitters start spitting at the bots while those are endlessly repairing each other while getting burned even more while doing so etc., etc..
This is why I am suggesting the implementation of a new expensive end-game research which makes constuction robots fire resistant and/or immune to fire damage.
It might also be worth considering, to make them fire immune by default.
If you don't implement this, it gives most players a very good reason to never use flamethrowers which would be really sad, since they are already more difficult to use than the other two turret types.
Debunking workarounds:
Building roboports juuuuuust close enough to repair turrets, but juuuuust not close enough to repair walls, is a bad workaround, because you can't get any logistic-robot access close to walls then, it makes your base look even more BOXXY, and a single roboport's area is bigger than 99% of the mining bases, also: I actually appreciate it, if the robots repair the walls, too, so this work around is bad. Please solve this issue, one way or the other.
Building defenses is very simple and repetetive already, it would be a shame to demoralize players who love to use all 3 turret types.
Another thing to consider: Aliens never use fire, so the research doesn't protect bots from aliens!
Also: When it comes to PvP, you could implement an Option for the host to block this research from the game. But that is for you to decide, I don't care about PvP.
P.S.:
Another good argument:
As soon as one of your landmines explodes, the construction robots will hurry to replace it with another one. Obviously landmines only explode when aliens are near, so that's where your fire turrets are going to fire at, so the drones replacing the mines will always get burned, especially since you devs increased the fire's duration in 0.15.0.
So even if the drones take their time, they will probably get burned.
