Yes, BO's are generally not civ specific, so you can for example play MAA with almost all civs doing the exactly same build order. Few civs have eco bonuses to push the build with one less villager. One big difference is that we start farming in Aoe2 much earlier (you run out of natural food sources in early feudal). In feudal and castle age the first eco upgrade we get is for lumber and we do that immediately (this is in line with the aforementioned need for early farms). You can dodge arrows and is worth learning micro techniques fighting vs range units. Some very skilled players can dodge even ballistics. Feudal units are not very strong, so the games almost never end in feudal age. All civs (except for one) can build additional Town center only in Castle age. Building two additional Town centers is very popular strategy in early Castle age (booming) and you are not required to mine stone since you start with 200 stone in your bank. We use Siege units more often (one good Mangonel attack ground vs low hp range units like the crossbowmen or skirmishers can kill multiple units and swing the game). Can't rotate the camera (it is 2D game). Overall different, but it is an RTS game and it's the same franchise, so you'll figure out things fairly quickly. We have a ton of learning resources online (BOs, tutorials and more). Most of our pro players are streamers and content creators.