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Support units can be embedded into other units

Civilization VI isn't removing Civ 5's one unit per tile rule, but Firaxis is dialling back on some of the harsher restrictions. "One thing we wanted to do was make sure you could tie units together. In Civ 5, it was tough to escort your settlers across the map because you couldn't tie them to a military unit," says Beach. Additionally, Beach notes, armies were perhaps a little too spread out. "When you need to concentrate your force to take out a city, everything being on its own tile was a problem at that point."

Beach describes support units as, "something that was part of your military force before, that really shouldn't have had to take up a tile." As the name suggests, it's supporting equipment: battering rams, siege towers, anti-tank guns and anti-air guns. "All the stuff that's like special equipment for you units. In Civ 5 you had to have a separate tile, but we've gone away from that."