Fixed the issue, was not ordering walls by range. But I get a lot of problems with inter room travel, like my creeps will try to go through a room with protection, have you got any advice?

Update: It is not using the flag to get back into the room.

I know about the pathfinding and constantly looking for targets issues but I have not had a problem with CPU yet, so it's on my todo list but not a pressing concern(also not the same logically so that will need some thought). Also my creep does move towards the target(which for debugging I set by ID so it does not solve this issue) but when it is in range for dismantling it does not move towards the exit and leave, it goes instantly(maybe that is correct behavior but it is worrying). Also there are no swamps between it and the target.

Another observation, only happens if creep is near to an exit.

Sorry, need to correct that to teleporting not suicide.

My creeps keep committing suicide when trying to destroy walls in enemy territory. Game.time = 11501703 in the middle of the time it was happening in room W19S38. Here is the script for my brutes(the creeps in question) http://pastebin.com/rX04sQtm and here is my "main" script http://pastebin.com/Nq8v3jx7. I have no idea why this is happening, and I have discussed it with others on slack who also had no idea as to why this is happening.

Look forward to hearing from you,

James