I dont know how to take it out. The range is massive, and basically every adjacent sector is free for the brit player. Your capping squad getting shot at? Arty the area. The only warning i seem to get is the first shell landing and wiping out more than 1/4th of my infantry force that im using to stop the capturing squad.
Any artillery unit i try to use against it gets shelled to pieces as well, well before the 25 pounder gets destroyed by my own artillery.
What are the strategies im supposed to be using to take one out?