Gate (Age of Empires II)

The Gate is one of the most useful fortifications in Age of Empires II. It acts as a gate, automaticly obening to let frendly units through, but preventing enemy units from comming through. This makes city walls much stronger, as you do not need to leave gaps in the wall to let your units out. It also alowls you to deploy your units much more effecently. Gates can be built in existing walls. Gates have more hitpoints than walls, but their greater surface area makes them far more vounerable, as far more units can attack them at once.