Hei, guys I just got the bunker and I'm not sure how to place it.Could you give some tips on how to use the bunker at PH4 and on higher PH levels?
Try and place it where other defences are protecting it, because it's easy to sneak up behind a bunker with even a single gunner and destroy it. I would look at bases you are raiding and see how they have placed theirs.
think about what you want to protect (PH, Storage, Collectors) and place this in the fire line of the bunker and as awbo wrote, the bunker is weak out of it's fire line so protect the bunker with cannons and/or gun towers. Forget walls as only protection because pirates with wide range like Gunners will destroy it.