Now you know the plan, let's discuss the start. As previously mentioned, three of the other Castles (far West, far South and far East) castles can be destroyed by Trebuchets from outside the wall and the twelfth Castle will always be destroyed by your ally, the Visigoths and is located just West of their entrance. This route covers eight of the twelve Roman Castles. Destroy this one too and the final Castle on your journey with your main army is just to the South-east again and can be sniped from behind the Aqueduct. After this, continue following the road South-east and you'll come across another castle behind a wall with a gate.

Continue North-east up the road to the Castle at the very North of the map, again keeping your distance as best you can to avoid taking any more casualties than needed and protect your Trebuchets. This Castle has a large army around it, but as you'll be destroying it from behind a wall rather than where the gate is, they shouldn't chase you. Now, you'll want to double back on yourself and head directly North of the gate that your ally, Ataulf originally destroyed and cross some shallow water to get round the back, destroying another castle on the way (just East of the shallow water). Then, make your way South-east and destroy the Castle surrounded by water from a distance and follow up by destroying the next Castle just to the North-east of it. Then across the bridge to the East, there is another castle which can be destroyed with Trebuchets - again, with little or no resistance. After breaching the wall, there is a Castle to the South you can kill with a Trebuchet(s) with little or no resistance. I try to destroy every Castle from a distance and engage in as little prolonged combat as possible. Follow him in and build a Castle as soon as he attacks and start pumping Trebuchets, but make sure to also upgrade your Huskarls as soon as you can as well as getting the two increased Barracks production speed upgrades. I found the best entry point to use is where you ally, Ataulf is. Your allies will potentially destroy the one closest to you, but this is not guaranteed. The other Castles that you should snipe from outside the walls are the one on the far left of the map and the one on the far right of the map.

I do this to two of the Castles in this video, however it was my intention to do this to three, but one had already been destroyed by an ally (the one closest to your start position). The game plan - There are a few castles which can be sniped by Trebuchets from outside the Roman Walls which I would highly recommend doing. On the positive side, you will have two allies in this mission who actually contribute towards taking out the castles, but not to the extent where they will do everything for you - far from it.

As such, before even attempting it, I would recommend starting the level and resigning immediately to reveal the map, so that you can get a gist of where everything is and the plan of attack we'll be using. Unless you are really good and highly experienced at this game, it will likely take multiple attempts. There are 12 Roman Castles to destroy in 30 minutes. This is arguably the hardest campaign achievement in Age of Empires II: Definitive Edition. Age of Empires II: Definitive Edition (PC) - Achievement - Rome Was Destroyed in One Dayĭestroy all Roman Castles before 30 minutes have elapsed in the fourth Alaric mission 'The Giant Falls'

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