[suggestion] Doors and switches
for raiding in multiplayer, there should be lockable doors, that can be opened by switches.
So there could be a better feel of the need of another player for getting through a map.
You ask " ... oh, but the harvester couldn't get along it's path, this don't work!!!!"
pfff, the locked doors should have a little catflap, wich the harvester could use, but the player not ;D
think about just the harvester crawling irritated through the tiny catflap ;D
good raids custodians